119results about How to "Meet different usage needs" patented technology

This utility model relates to the field of milling cutter technology and discloses a milling cutter that is easy to install. It includes a milling cutter shank section, a milling section at the bottom of the shank section, and a composite cylindrical component slidably mounted on the top surface of the shank section. The surface of the composite cylindrical component has friction grooves, and the inner wall of the composite cylindrical component has several positioning holes along its longitudinal direction. This utility model uses the composite cylindrical component, T-slots, positioning holes, composite I-shaped grooves, and limiting components, positioning screw holes, and limiting screws to form an auxiliary structure. After assembly and use based on the structure of the milling cutter shank section, the friction grooves on the surface of the composite cylindrical component effectively ensure the connection strength with the tool holder and the subsequent compressive strength of the cutter. Compared to other complex technical solutions in the prior art, the auxiliary structure and assembly and use of the milling cutter shank section in this application maintain convenient installation and usage conditions.

The utility model discloses a general vehicle full -color night -vision auxiliary driving system, including multi -objective camera, individual helmet, car machine big screen and panoramic video processor, multi -objective camera all with panoramic video processor electricity is connected with individual helmet, car machine big screen, the multi -objective camera is used for gathering the image of vehicle surrounding environment, individual helmet is provided with head -mounted display, and the head -mounted display of individual helmet is used to present the image of vehicle surrounding environment after the processing of panoramic video processor, car machine big screen is used for presenting the image of vehicle surrounding environment after the processing of panoramic video processor on the vehicle. The utility model solves the problem that the imaging color of traditional vehicle night -vision auxiliary equipment is single, the detail is not clear, cannot provide panoramic visual information, is difficult to effectively integrate with vehicle system, helps the driver to be more accurate in judging the road condition under the night and complex environment, and improves driving safety and convenience.

The utility model belongs to the field of building construction walls, and particularly relates to an auxiliary component for intelligent construction, which comprises two outer vertical walls, inner frameworks and filling materials, the inner frameworks are attached to the inner sides of the two outer vertical walls, the filling materials are attached between the inner frameworks on the two sides, and the filling materials are arranged between the outer vertical walls and the inner frameworks. The outer vertical wall is of a zigzag structure. According to the structure, internal filling materials can be sprayed and built through 3D printing equipment, the external wall body can be decorated at will according to design requirements, the mortar layer can be sprayed and built only after workers bind reinforcing steel bars, the whole building of the wall body can be completed, and the construction efficiency and the accuracy after the wall body building is completed are improved.

The application provides a power lighting distribution control box, which comprises a box body, a box door and a set of storage cabinets installed in the box body, and electrical elements are installed in the storage cabinets; first sliding grooves are symmetrically formed in the top and bottom of the box body, the storage cabinets are respectively clamped to the first sliding grooves in the top and bottom of the box body through symmetrically arranged sliding blocks in the top and bottom, and the box door is connected to the box body along a direction perpendicular to the sliding direction of the sliding blocks. The first sliding grooves are symmetrically formed in the top and bottom of the box body, and the storage cabinets are clamped to the first sliding grooves through symmetrically arranged sliding blocks, so that the slidable installation of the storage cabinets in the box body is realized; maintenance personnel can more easily slide the storage cabinets out of the box body to maintain and check the electrical elements, the efficiency and safety of the maintenance of the distribution control box are effectively improved, and the operation difficulty caused by the narrow space in the traditional design is avoided.

The present disclosure provides an information processing method, device, equipment, storage medium and computer program product, relates to the technical field of computers, and particularly relates to the field of software development. The specific implementation scheme is as follows: acquiring at least one item of information in file information and version information of a specified version in a remote version library; archiving the at least one item of information to obtain an archiving package of the specified version; the type of the archiving package of the specified version is a first type or a second type, the archiving package of the first type carries the file information of the specified version, and the archiving package of the second type carries the file information and the version information of the specified version; sending the archiving package of the specified version to a third-party storage system; and the third-party storage system is used for storing the archiving package. The technical scheme of the present disclosure can archive at least one item of information in the file information and the version information of the specified version in the remote version library and store the information in the third-party storage system, so as to reduce the read-write pressure of the remote version library and improve the overall read-write performance and throughput.

The utility model discloses an aircraft power supply connector with a replaceable insertion core, which comprises a shell, an insertion core inner frame is arranged in the shell, the insertion core inner frame is provided with the insertion core, the insertion core is composed of two connected rod bodies, the front end rod body is connected to the rear end rod body, and the rear end rod body is arranged on the insertion core inner frame; at least one insertion core is provided with a heat conduction piece and a temperature sensor, and the temperature of the insertion core is transmitted to the temperature sensor through the heat conduction piece. According to the utility model, the front end rod body can be rapidly replaced so as to adjust the length of the insertion core or match with different charging bases, thereby satisfying different use requirements, reducing the use cost of the power supply connector, improving the compatibility of the power supply connector, and prolonging the service life of the power supply connector. The temperature of the insertion core can be better transmitted to the temperature sensor through the heat conduction piece, the sensing effect of the temperature sensor is improved, and the socket is safe, reliable and high in stability.

This utility model relates to the field of cosmetic technology. A one-piece anti-powder container includes an outer shell, an inner cavity for storing powder, a central ring rotatably mounted on the outer shell, the central ring being rotatably connected to the outer shell via a limiting structure, a lid rotatably mounted on one side of the central ring, a powder puff tray and a powder puff seat rotatably connected inside the central ring, and a pressure relief structure cooperating with the powder puff tray inside the lid. This utility model provides a structure for producing powder containers according to different needs, meeting various user requirements, offering convenience, and improving the user experience. It solves the technical problem of existing powder storage containers having a single structure, which cannot meet different usage needs and results in powder flying when opened, failing to meet higher user demands.

The application discloses a light guide and a vehicle lamp module, which comprises a light guide body, the light guide body is in a flat structure, the rear end of the light guide body is provided with one or more light guide parts, the light guide parts are used for guiding high beam light into the light guide body, the front end of the light guide body is provided with a notch, the notch is used for avoiding part of low beam light, the edge of the notch forms a light exit surface of the light guide body, the light exit surface is used for high beam light, the upper surface of the light guide body is provided with a light reflection layer, the light reflection layer comprises a reflection plane, the reflection plane is used for reflecting part of low beam light, so that the low beam light forms a clear cut-off line. The light guide and the vehicle lamp module provided by the application can form a clear cut-off line without using a baffle, can reduce the use of a baffle and a driving mechanism and other accessories, effectively reduces the volume of the vehicle lamp module, and reduces the energy consumption for switching between low beam and high beam.

This utility model discloses a container base frame, comprising a frame consisting of two horizontal plates and two vertical plates. The horizontal plates and their corresponding vertical plates are connected by connectors. Multiple first threaded holes are evenly spaced on the opposite sidewalls of the two horizontal plates. Multiple support beams are provided within the frame, and each support beam is connected to its corresponding first threaded hole by a first screw. Multiple through holes are evenly spaced on the bottom of each support beam. This utility model features a reasonable structural design, connecting multiple horizontal and vertical plates to form a rectangular frame. The support beams and reinforcing ribs work together to support the cover plate, ensuring its stability and reducing deformation and collapse. The through holes allow cables to pass through, facilitating cable routing, and allow for adjustment of the support beams' positions within the frame. The design is simple to operate and meets various usage requirements.

The utility model discloses a kind of beef cattle breeding grass automatic feeding machine, belong to beef cattle breeding technical field, comprising: mixing drum;Counterweight plate, shape is U-shaped, is rotatably connected with mixing drum by rotating rod, and the outer wall of counterweight plate is equipped with the rotating motor for rotating rod to provide power;Three servo motors, in the shape of a triangle are installed on the outer wall of mixing drum, and the output shaft of servo motor is connected with stirring rod, and the outer periphery of stirring rod is connected with multiple L-shaped scatter plate of staggered arrangement, and the outer periphery of scatter plate is connected with rubber scraper for cleaning the inner wall of mixing drum;The outer periphery of mixing drum is provided with material passage for beef cattle breeding grass up and down material, and the inner wall of material passage is rotatably connected with two movable doors, and the inner wall of counterweight plate is connected with the inclined guide frame below mixing drum.This beef cattle breeding grass automatic feeding machine, not only can scatter grass, but also can stir even a variety of grass.

This invention discloses a positioning and anti-rotation device for a guideable mold flipping mechanism used in rubber and plastic mold processing. The device includes a guide mold flipping assembly, a linkage reversing assembly, and an active assembly. The guide mold flipping assembly is connected to one end of the linkage reversing assembly, and the outer wall of the linkage reversing assembly is connected to the active assembly. The guide mold flipping assembly can flip the mold during the rubber and plastic mold processing. The linkage reversing assembly serves as an intermediate linkage assembly, and the active assembly can control the rotation direction of the guide mold flipping assembly. Simultaneously, the active assembly can control the start and stop of the guide mold flipping assembly. Through the special structure of the linkage component and the connection method between the linkage component, the active assembly, and the sleeve, the locking post can drive the linkage component in the linkage reversing assembly to move. Different positions of the linkage component result in different effects for the guide mold flipping assembly. The adjustment process is convenient and meets various usage requirements.

This invention discloses a nasal topical medication application system, relating to the technical field of nasal topical medication application devices. To improve the medication application effect, the device includes a receiving bottle with a dispensing section at its top. Delivery pipes are fixed to the inner walls of both sides of the top of the receiving bottle via fixed supports. The delivery pipes are located at the center of the inner side of the dispensing section, and an airflow channel is provided between the delivery pipes and the dispensing section. The system includes the aforementioned medication application device, as well as a nasal topical medication formula and a preparation method for the formula. The formula includes the following components: seawater and purified water. This invention features a stirring mechanism. The user can press the connecting rod to apply an axial force to the rotating column. The sliding ball and the spiral groove form a sliding engagement, causing the rotating column to rotate, which in turn drives the stirring part to rotate, achieving stirring and avoiding uneven mixing of the drug components, thus improving the medication application effect.

The utility model discloses an elliptical machine capable of adjusting positive and negative gradients. The gradient assembly is fixedly arranged on the bottom frame, the gradient assembly comprises a gradient seat and a rotating block, the rotating block can rotate on the gradient seat and is temporarily fixed, and the rotating block can adjust the gradient of the elliptical machine through rotation; the rewinding mechanism is provided with a rewinding point capable of moving on a circular track and is arranged above the bottom frame; the main frame is fixedly arranged above the bottom frame; the first connecting rods are rotationally arranged on the two sides of the main frame, and swing arms extend from the ends, connected with the main frame, of the first connecting rods; one end of the second connecting rod is hinged to the first connecting rod, and a pedal is arranged on one side of the other end of the second connecting rod; one end of the third connecting rod is hinged to the rewinding point of the rewinding mechanism, the other end of the third connecting rod is provided with a rolling piece to abut against the rotating block, and the rolling piece can roll in the length direction of the rotating block.

The invention discloses a high-water-content lignite moisture accurate regulation and control method and device, and relates to the technical field of lignite treatment device.The high-water-content lignite moisture accurate regulation and control device comprises a rack and further comprises a crushing mechanism connected to the rack, and the input end of the crushing mechanism communicates with a feeding port; the input end of the vacuum dehydration system is communicated with the output end of the crushing mechanism; the input end of the feeding mechanism is communicated with the output end of the vacuum dehydration system; and the input end of the upgrading mechanism communicates with the output end of the feeding mechanism. High-water-content lignite is crushed through the crushing mechanism, water and pulverized coal are separated and collected through the vacuum dehydration system, and ash which affects heat production and pollutes the environment in the pulverized coal is removed through the quality improving mechanism, so that the combustion quality of the lignite powder is improved, and emission of pollutants is reduced; and conveying of the pulverized coal and adding of the corresponding water content are continuously performed through the scraper conveying belt, so that the influence of water and ash in the lignite with the high water content is reduced, and the water in the lignite is accurately regulated and controlled.

The utility model provides a kind of wind collecting nozzle with straightening function, including the wind nozzle body for being connected at the hot air outlet of hair dryer, the wind nozzle body has the air guide channel for guiding the hot air of hair dryer, and the air outlet is communicated with air guide channel, the wind nozzle body is connected with the hair clip assembly that it air outlet is covered, the hair clip assembly includes the hair clip seat for being connected at the air outlet of wind nozzle body, the hair clip seat is connected on the air outlet of wind nozzle body and is equipped with the first air outlet for being communicated with air guide channel communication, the hair clip seat rotatably connected with the hair clip cover that can be folded on hair clip seat and then hold hair, the second air outlet for hot air outlet is equipped on the hair clip cover, and the utility model aims at overcoming the deficiency of prior art, to provide a kind of wind collecting nozzle with straightening function, more convenient to use, more suitable.

The utility model relates to the technical field of veterinary drug powder raw material storage, in particular to a veterinary drug powder raw material storage tank with a cleaning function, which comprises an upper clamping cover, a lower clamping opening and a storage tank, the lower clamping opening is arranged at a top opening of the storage tank, and the upper clamping cover is fixed at the top of the lower clamping opening through a locking bolt in a clamping manner. Electric hydraulic cylinders are mounted on the two sides of the top of the upper clamping cover through mounting seats, output shafts of the electric hydraulic cylinders penetrate through the upper clamping cover and are provided with positioning rings through L-shaped mounting plates, and annular rubber scraping plates are bonded to the bottoms of the positioning rings; the annular rubber scraping plate is located in the storage tank and tightly attached to the inner wall of the storage tank, a straight-through pipe is arranged at the axis of the upper clamping cover in a penetrating mode, and the bottom of the straight-through pipe is connected with a cleaning spray head. The veterinary drug powder raw material storage tank has the cleaning function, cleaning liquid is pumped into the cleaning spray head to be sprayed out, comprehensive cleaning is achieved while the inner wall is cleaned and scraped, the cleaning efficiency is high, and the cleaning effect is good.

This utility model discloses a slipform tool for casting and shaping curb backrests, relating to the field of road engineering. It includes a support rod, one end of which is fixedly connected to a first connecting rod. A guide wheel is provided at the lower end of the first connecting rod. An adjusting frame is fixedly connected to the upper end of the support rod. An adjusting rod is provided inside the support rod, and a locking hole is opened inside the adjusting rod. A fixing rod is fixedly connected to the right end of the adjusting rod. The advantages of this utility model are: the position of the side plate can be adjusted through components such as the adjusting frame, moving block, locking post, guide block, and adjusting rod, thereby meeting different usage needs. Furthermore, compared to the original method, this method is more convenient and faster, greatly reducing the difficulty of adjustment. Components such as the rotating rod, fixing sleeve, positioning post, and stud can quickly install and remove the side plate, allowing for timely replacement when wear occurs, and improving replacement efficiency.

The utility model discloses a growth type multifunctional baby crib, relates to the technical field of baby cribs, and aims to solve the technical problems that the structure of the current baby crib is inconvenient to efficiently adjust to cope with the space and the use scene, and the current baby crib is inconvenient to adapt to the demand change in the growth process from a baby to a child, so that the product is easy to be idle and is eliminated too early. Comprising a fence module, a bed frame module arranged in the fence module and a bed body module arranged on the bed frame module, the fence module comprises a shielding fence, the bed frame module comprises a bearing bed frame and a telescopic hinge sliding rail shade, and the telescopic hinge sliding rail shade comprises a fixed part and a telescopic part. The bed body module comprises a movable bed board, a fixed bed board, an expansion bed board and a hinge sliding rail. The baby crib has the advantages that the length and the height of the baby crib can be adjusted, the baby crib can continuously change along with the growth of a baby, the growth requirement of the baby from birth to school age is met, and higher economical efficiency and practicability are provided for family users.

The utility model discloses a blocking piece for a pleat shoveling machine, and belongs to the technical field of pleat shoveling machines. The blocking piece for the pleat shoveling machine comprises a connecting mechanism, an adjusting mechanism and a gear dividing mechanism, the connecting mechanism comprises a transverse rod, and a connecting block is fixedly installed on the bottom side of the transverse rod; the adjusting mechanism comprises an adjusting rod, a plurality of pairs of mounting holes are formed in the upper end of the adjusting rod, first fixing bolts are movably inserted into one pair of mounting holes, one ends of the pair of first fixing bolts are in threaded connection with the outer side of one end of the cross rod, and an inserting hole is formed in the bottom end of the adjusting rod; the gear dividing mechanism comprises an inserting rod, the inserting rod is movably inserted into the inserting hole, a pressing plate is fixedly installed at one end of the inserting rod, an inclined plate is fixedly installed at one end of the pressing plate, and a partition plate is fixedly installed at the center of the bottom end of the inclined plate.

The utility model relates to the technical field of air conditioner dehumidification, in particular to an integrated modularized coating dehumidifier which comprises a cabinet body, a dehumidification chamber and a heat exchange chamber are arranged in the cabinet body, an adsorption coating heat exchanger is installed in the dehumidification chamber, and a processing air inlet valve and a regeneration air inlet valve which are communicated with the dehumidification chamber are installed on one side wall of the cabinet body. The other side wall of the cabinet body is provided with an air supply valve and an air exhaust valve which are communicated with the dehumidification chamber; a heat pump unit is mounted in the heat exchange chamber; the adsorption coating heat exchanger is connected with the heat pump unit through a refrigerant pipeline; by switching the working states of the adsorption coating heat exchanger and an auxiliary heat exchanger in the heat pump unit, the adsorption coating heat exchanger serves as a condenser, the auxiliary heat exchanger serves as an evaporator, and the adsorption coating heat exchanger is heated for desorption regeneration; or the adsorption coating heat exchanger serves as an evaporator, the auxiliary heat exchanger serves as a condenser, and the adsorption coating heat exchanger conducts cooling and moisture absorption, so that the requirement for intermittent dehumidification is met.

The invention relates to the field of ferry vehicles, in particular to a ferry vehicle which comprises a vehicle frame and a carriage movably arranged on the vehicle frame, a lifting driving assembly is arranged between the vehicle frame and the carriage, a folding ladder is hinged to the vehicle frame and the carriage, an upper opening and a lower opening are formed in the bottom face of the carriage, and the top end of the folding ladder is hinged to the ends of the upper opening and the lower opening. An in-out opening is formed in the front end of the compartment, the lifting driving assembly drives the compartment to move upwards, the in-out opening is in butt joint with an airplane cabin door, the lifting driving assembly drives the compartment to move downwards, and the in-out opening is in butt joint with the rear end face of a cab of the frame, so that different use requirements are met, and the functions are more diversified.

The utility model relates to the technical field of chairs, in particular to a chair for correcting sitting postures, which comprises a support, a chest protecting mechanism arranged outside the support and an adjusting mechanism arranged outside the support and used for adjusting the position of the chest protecting mechanism, the adjusting mechanism comprises a channel, a screw rod, an adjusting block, a through hole and a handle, and a limiting ring is fixedly mounted outside the handle. When a user uses the chair, the position of the chest protection mechanism can be adjusted according to the body condition, that is, a handle is rotated to drive a lead screw to rotate, the lead screw can drive an adjusting block to move, the adjusting block drives the chest protection mechanism to move until the chest protection mechanism moves to a proper position, and the handle can be stopped rotating at the moment; through the adjustment of the transverse position of the chest protection mechanism, the chair can adapt to the body size difference from the back to the chest of different children, provides proper chest support for each child, and ensures the use comfort, thereby ensuring the sitting posture correction effect of the chair.

The utility model discloses a portable learning machine with an external support assembly, which belongs to the technical field of learning machines and comprises a learning machine body and a storage box, one side of the learning machine body is connected with the storage box, an outer ball is connected inside the storage box, and an inner ball joint is connected inside the outer ball. According to the learning machine, the outer ball is arranged in the storage box, the inner ball joint connected in the storage box can move in multiple directions in the using process, meanwhile, the inner ball joint can rotate and adjust the direction in the outer ball, the position adjusting rotating barrel at the tail end of the outer ball is supported on a table top, and meanwhile the cushion block is arranged at the lower end of the learning machine body. Meanwhile, by rotating the position adjusting rotary barrel, an internal thread in the position adjusting rotary barrel is separated from a thread of the threaded rod, so that the length of a combined body of the threaded rod and the position adjusting rotary barrel is increased, the inclination angle of the learning machine body is changed, and different use requirements are met.

The invention relates to an intelligent head and face hot compress instrument which comprises a head cover, a head heating element, a face mask, a face heating element and a controller, the head cover is matched with the head of a user, the head heating element is used for being fixed in the head cover and used for heating a hot compress bag matched with the head of the user, and the face mask is detachably connected with the head cover. The face heating element is used for being fixed in the mask, and the controller is electrically connected with the head heating element and the face heating element and can independently control the heating time and the heating temperature of the head heating element and the face heating element. The intelligent head and face hot compress instrument is ingenious in structure and convenient to operate, the head heating element and the face heating element are integrated on the same hot compress instrument, the hot compress instrument can conduct hot compress on the head and the face at the same time, and the use experience is improved while the hot compress efficiency is improved. The application method of the intelligent head and face hot compress instrument also has the advantages that operation is convenient, the operation difficulty is reduced, and meanwhile the hot compress efficiency is improved.

The utility model relates to the technical field of fans, in particular to an air outlet structure and a fan, the air outlet structure comprises a shell, an air outlet cover, an air inlet cover and a fan module arranged in the shell, the shell is of a cylindrical structure with two open ends, and the air outlet cover and the air inlet cover are arranged at the two ends of the shell respectively; the air outlet cover or / and the air inlet cover is / are detachably connected to the shell. The fan module comprises fan blades, a motor assembly used for driving the fan blades to rotate and a locking piece used for fixing the fan blades to the motor assembly, the motor assembly is connected to the air inlet cover or the air outlet cover, and the locking piece and the fan blades are detachably connected to the motor assembly. When the fan blades need to be cleaned, the locking piece is detached from the motor assembly, and then the fan blades can be detached from the motor assembly. The whole operation process is simple, convenient and fast, the fan blades can be independently taken down to be cleaned, and the disassembling efficiency is greatly improved.

The utility model discloses a raw material crushing mechanism for chemical fiber production, which relates to the technical field of chemical fiber production and comprises an operation table, a side plate is fixedly mounted on one side of the operation table, a limiting ring is fixedly mounted at the top of the operation table, a rotating seat is rotatably mounted at the top of the limiting ring, and a limiting groove is formed in the bottom of the rotating seat. The limiting groove is matched with the limiting ring, a hopper-shaped material pressing groove is formed in the rotating seat, a leakage plate is installed at the bottom of the rotating seat, a plurality of discharging openings are formed in the leakage plate, and a discharging pipe is fixedly installed at the bottom of the rotating seat; the chemical fiber production raw material crushing device has the beneficial effects that through the arrangement of the limiting ring, the rotating seat, the limiting groove, the hopper-shaped material pressing groove, the leaking plate, the discharging pipe, the pressing roller, the gear ring, the motor and the gear, chemical fiber production raw materials can be directly discharged after being crushed to the suitable particle size when being crushed, the situation that the materials are machined to the degree inconvenient to use is avoided, manual feeding and discharging are not needed, and the production efficiency is improved. The use is more convenient and quicker.

The utility model discloses a blending deepening agent storage barrel which comprises a bearing seat, a storage barrel main body and a cushion block, a vertically-through stepped hole is formed in the bearing seat, an opening is formed in the front side of the stepped hole, the cushion blocks are symmetrically and fixedly arranged on the left side and the right side of the outer wall of the storage barrel body, and the cushion blocks are embedded in the guide grooves in a sliding mode and embedded in the annular grooves in a sliding mode. Different use requirements are met by adjusting the relative different height positions of the storage barrel body and the bearing seat, the storage barrel body is arranged on the step face of the step hole of the bearing seat, the storage barrel body is located at the low position, the overall gravity center of the storage barrel body and the bearing seat is lowered, and the stability of the combination of the storage barrel body and the bearing seat in the transportation or carrying process can be improved. The cushion blocks on the two sides of the storage barrel body are screwed into the annular grooves, the storage barrel body is located at the high position, the height from the liquid opening to the bearing base is 20-30 cm, and a user can conveniently use a container to receive the deepening agent through the liquid receiving opening.

The utility model provides a kind of one-in multi-out check valve, the one-in multi-out check valve includes valve body, cover and valve core of the valve cover being arranged in the top of valve body, the inside of valve body is provided with flow cavity, the bottom of valve body is provided with import with flow cavity intercommunication, the side of valve body is provided with at least two exports with flow cavity intercommunication, one end of valve core abuts valve cover, the other end of valve core can block the junction of import and flow cavity.The one-in multi-out check valve is matched by valve cover, valve body and valve core, import is simultaneously set in the bottom of valve body, and at least two exports are set in the side of valve body, so that the one-in multi-out check valve can be directly assembled and connected with multiple direction pipes, without installing three-way, four-way and other pipe fittings, simplify pipeline system structure, reduce the quantity of connecting component and overall manufacturing cost, while due to the reduction of connection node, improve system reliability while reducing the difficulty of later maintenance.