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49results about How to "Increase or decrease in length" patented technology

Frequency-adjustable stretchable liquid metal antenna and manufacture method thereof

The invention discloses a frequency-adjustable stretchable liquid metal antenna which comprises a stretchable base plate, wherein a curve-shaped liquid metal micro-flow way is machined on the stretchable base plate, and the liquid metal micro-flow way is internally filled with liquid metal or liquid metal alloy; when the stretchable base plate is transversely stretched, the liquid metal or the liquid metal alloy in the curve-shaped micro-flow way is lengthways and transversely deformed, and the length change of the stretched liquid metal antenna is controlled by presetting the proportional relation between the lengthways deformation and the transverse deformation, so that the work efficiency of the transversely-stretched liquid metal antenna can be adjusted. The invention further provides a manufacture method of the frequency-adjustable stretchable liquid metal antenna. According to the frequency-adjustable stretchable liquid metal antenna and the manufacture method of the liquid metal antenna, the length change of the stretched liquid metal antenna is controlled by presetting the proportional relation between the lengthways deformation and the transverse deformation, so that the work efficiency of the transversely-stretched liquid metal antenna can be adjusted.
Owner:HUAZHONG UNIV OF SCI & TECH

Experimental device for researching morphology of oil displacement foam in seepage and migration processes

InactiveCN105842127ADirect observation of migration statusAdjustable permeabilitySurface/boundary effectMacroscopic scaleSoil science
The invention discloses an experimental device for researching morphology of oil displacement foam in seepage and migration processes. A transparent casing and a sand core are mainly assembled to form the experimental device which is a transparent model pipe device. The macroscopic morphology of the foam can be observed by the aid of the transparent model pipe device in the seepage and migration processes. The sand core is arranged at a set position of an inner cavity of the transparent casing, the inner cavity of the transparent casing is sectioned to form oil permeation rock stratum simulation systems, the sand core is made of porous media with known average pore diameters, the shape of the outside of the sand core is consistent with that of the inner cavity of the transparent casing, continuous closed cavities are formed in the wall of the transparent casing and are used as temperature-control fluid circulating pipe casing cavities, and the temperatures of experimental media which are fed into the inner cavity of the transparent casing can be regulated and controlled by the temperature-control fluid circulating pipe casing cavities. The experimental device has the advantages that different temperature and salinity conditions can be simulated by the experimental device; the permeability of the porous media can be conveniently changed; phenomena can be directly observed via model pipes; the experimental device is low in economic cost and convenient to assemble; the experimental device is low in economic cost, wide in service condition and convenient to assemble, and macroscopic observational research in the research field can be improved.
Owner:SHANGHAI UNIV

Clamping device

The invention discloses a clamping device which comprises a clamping shaft and two sliding tables which are arranged in symmetry relative to the central line of the clamping shaft, wherein the two sliding tables are respectively provided with sliding rods which can slide; the clamping device further comprises four clamping arms with the same lengths and a contacting unit; the four clamping arms are respectively rotationally fixed on two sides of the two sliding tables; the four clamping arms are respectively provided with clamping units; the four clamping units are arranged in symmetry relative to the central line of the clamping shaft; the two sliding rods are respectively connected with thrust rods; two opposite ends of each thrust rod are respectively and elastically connected with one clamping arm; the contact unit is clamped between the two sliding rods in a sliding manner; and the distance from the four clamping units to the central line of the clamping shaft can be changed simultaneously along the contact unit moves in the direction of the central line of the clamping shaft.
Owner:SHENYANG SIASUN ROBOT & AUTOMATION

Uplift pile and construction method thereof

The invention discloses an uplift pile and a construction method thereof, and belongs to the technical field of building construction. The technical problem that in the prior art, the uplift capacityof the uplift pile in the prior art is not high I solved. Two technical schemes are included. In the first and second technical scheme, a structure with one pile body and multiple pile main bodies isprovided, engaging portions / barb portions formed through outward protruding of the connecting positions of the pile main bodies can be used for being engaged with a building soil layer, and the upliftcapacity is improved; in the first technical scheme, a through cement paste runner is arranged, the strength of the whole pile body is improved, according to the second technical scheme, multiple subpile bodies are arranged to form a combined pile body structure, the length of the pile bodies can be achieved by increasing or decreasing the sub pile bodies, acting according to circumstances is achieved, the cement paste runners with the diameters being larger in upper and smaller in lower are arranged in the sub pile bodies, the combined pile body forms a whole body, and the strength of connection between the sub pile bodies can be improved.
Owner:JINLING INST OF TECH

Bit shank manufacturing method

The invention discloses a bit shank manufacturing method which comprises the following steps of regarding a bit shank as a divisible part, wherein the bit shank is divided into a left-side spline endand a right-side screw-thread male connector and is formed by combining a left part and a right part; (1) processing the screw-thread male connector; (2) processing the spline end; and (3) processingthe bit shank: A, selecting the spline end matched with a jackdrill, and the corresponding screw-thread male connector; B, using a friction welding machine for welding the spline end, the screw-threadmale connector and a middle cooperation end; C, removing internal and external welding trimmings, namely, welding slags; D, carrying out heat treatment on the welding part again; E, carrying out nondestructive inspection on the welding part; F, straightening and removing the straightening stress; G, feeding on a cylindrical grinding machine, grinding a middle part until the dimension meets the drawing requirement, polishing planes at two ends, and ensuring that the two end surfaces are parallel and perpendicular to a middle axis at the same time; and H, after passing inspection, coating anti-rust oil, packaging and storing. The spline end can be matched with multiple screwed joints, so that the material is saved; flexible and customized production can be realized; and the stock of finished goods in a warehouse is reduced.
Owner:刘艺纯

Intelligent microneedle puncture instrument, network system and control method

The invention discloses an intelligent microneedle puncture instrument, a network system and a control method. The intelligent microneedle puncture instrument comprises a hollow cylindrical shell, a control mechanism, a driving mechanism, a flexible needle outlet adjusting mechanism and a microneedle suite, wherein the control mechanism, the driving mechanism and the flexible needle outlet adjusting mechanism are sequentially arranged in a hollow cavity of the shell from top to bottom, and the microneedle suite is detachably connected with the flexible needle outlet adjusting mechanism; and the microneedle array obtains needle withdrawing and puncturing depth ranges of 0-(H1 + H2) in the axial direction, makes contact with the skin of each area and punctures the skin, and transdermal drug delivery or physical therapy is carried out. The network system comprises an intelligent microneedle puncture instrument and an intelligent terminal, and the intelligent terminal is provided with a beauty / physiotherapy control applet or APP. The control method comprises the steps that the intelligent microneedle puncture instrument, an intelligent mobile phone and a remote server are connected, the APP calls the intelligent terminal, data of a user is obtained, the intelligent puncture instrument is controlled to work, and transdermal drug delivery or physiotherapy of the skin is carried out. The intelligent microneedle puncture instrument is easy to use, large in puncture depth adjusting range, good in effect and high in safety.
Owner:广州纳丽生物科技有限公司

High-precision thermocouple

A high-precision thermocouple provided by the present invention comprises a junction box, a first thermocouple, a second thermocouple and a third thermocouple. The first thermocouple comprises a first protection tube, a first casing pipe, a first conductor, a second conductor, a first binding post and a second binding post, the second thermocouple comprises a second protection tube, a second casing pipe, a third conductor, a fourth conductor, a third binding post and a fourth binding post, the third thermocouple comprises a third protection tube, a third casing pipe, a fifth conductor, a sixth conductor, a fifth binding post and a sixth binding post, and the first, second and third protection tubes have different lengths. According to the present invention, the temperatures of different temperature measurement points in a same temperature measurement space can be measured, and the lengths of the first, second and third thermocouples all can be adjusted, so that the high-precision thermocouple is adaptive to different temperature measurement places, and is simple in structure, accurate in temperature measurement and diverse in function.
Owner:ANHUI LANRUN AUTOMATION INSTR

Method and device for producing a low-shrinking smooth yarn

InactiveCN100422410CHigh stacking timeHigh long stacking timeArtificial filament heat treatmentStretch-spinning methodsYarnEngineering
The invention relates to a method and a device for the production of a high-strength, low-shrinking synthetic smooth yarn. After melt-spinning, the filaments are grouped into a thread and drawn. The thread is then compressed into a package under the influence of temperature. Said package is then transported along a certain path so that the thread is relaxed in a stress-free state and under the influence of temperature. The package is subsequently untangled to form the smooth yarn, which is wound to form a spool.
Owner:SAURER GMBH & CO KG

Underwater robot positioning device and method suitable for pool wall operation

The invention provides an underwater robot positioning device and method suitable for pool wall operation. The device comprises a shore base, a winch body is installed at the top end of the shore base, an umbilical cable is installed in the winch body, and a robot body is installed at the end, away from the winch body, of the umbilical cable. In the process of winding and unwinding the umbilical cable by the winch body, the winding and unwinding length of the umbilical cable can be accurately measured through the action of an encoder, so that the projection distance between the winch body and the underwater robot body can be reversely deduced by combining the depth value measured on the robot body on the basis of the length data of the umbilical cable; and meanwhile, an attitude sensor on the robot body is combined, so that the underwater coordinate position of the robot body can be positioned, and the physical property of the length of the umbilical cable is fully utilized, so that the positioning cost is reduced, and meanwhile, a relatively economical positioning method is obtained.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Telescopic-boom crane and superlift device thereof

ActiveCN102689847AReduce the possibility of deformationFlexural deformation controlCranesPull forceEngineering
The invention provides a superlift device for a telescopic jib. The superlift device for the telescopic jib comprises at least one rotating support, a first tightening member, a second tightening member and a third tightening member, wherein the fixed end of the rotating support is pivoted with a basic boom of the telescopic jib, and the first tightening member is arranged between the movable end of the rotating support and the outer end part of the tail boom section of the telescopic jib; the second tightening member is arranged between the movable end of the rotating support and the root of the basic boom, and one end of the third tightening member is connected with any one section closing to the tail boom section; and the other end of the third tightening member is connected onto the first tightening member. The first tightening member and the second tightening member respectively supply a first pull force and a second pull force to the tail boom section and the basic boom, and the third tightening member supplies a third pull force to an intermediate boom section, so that the magnitude of the first pull force is reduced, and the pressure generated by the first pull force and the second pull force on the telescopic jib is also reduced, and thus the deformation of the intermediate boom section of the telescopic jib is effectively inhibited.
Owner:XUZHOU HEAVY MASCH CO LTD

Sliding mechanism and flexible display module

The invention belongs to the technical field of semiconductor devices, and particularly relates to a sliding mechanism and a flexible display module. The sliding mechanism comprises a sliding assembly and a plurality of supporting parts, the sliding assembly comprises a first plate body and a second plate body which are slidably connected, the first plate body is used for being connected with the starting end of a flexible screen body, and the first plate body and the second plate body can be relatively far away from or close to each other so that the length of the sliding assembly can be increased or decreased. The supporting parts are at least located on part of the second plate body and used for getting close to and supporting the flexible screen body after the first plate body gets away from the second plate body and getting away from the flexible screen body after the first plate body gets close to the second plate body. The stress generated when the flexible screen body is bent or wound is reduced, so that the occurrence of spallation of the flexible screen body is reduced, the influence on display of the flexible screen body is reduced, and the effect of prolonging the service life of the flexible screen body is achieved.
Owner:YUNGU GUAN TECH CO LTD

A stretchable liquid metal antenna with adjustable frequency and its preparation method

The invention discloses a frequency-adjustable stretchable liquid metal antenna which comprises a stretchable base plate, wherein a curve-shaped liquid metal micro-flow way is machined on the stretchable base plate, and the liquid metal micro-flow way is internally filled with liquid metal or liquid metal alloy; when the stretchable base plate is transversely stretched, the liquid metal or the liquid metal alloy in the curve-shaped micro-flow way is lengthways and transversely deformed, and the length change of the stretched liquid metal antenna is controlled by presetting the proportional relation between the lengthways deformation and the transverse deformation, so that the work efficiency of the transversely-stretched liquid metal antenna can be adjusted. The invention further provides a manufacture method of the frequency-adjustable stretchable liquid metal antenna. According to the frequency-adjustable stretchable liquid metal antenna and the manufacture method of the liquid metal antenna, the length change of the stretched liquid metal antenna is controlled by presetting the proportional relation between the lengthways deformation and the transverse deformation, so that the work efficiency of the transversely-stretched liquid metal antenna can be adjusted.
Owner:HUAZHONG UNIV OF SCI & TECH

Self-locking bracket, orthodontic system, and orthodontic method thereof

The invention discloses a self-locking bracket, an orthodontic system, and an orthodontic method thereof. The self-locking bracket comprises a main body part, a cover body part and a connection part. The main body part is provided with a surface and a bottom surface, wherein a main groove is formed in the surface of the main body part and divides the surface of the main body part into a first end and second end. The first end is relatively protruded from the second end. The surface of the first end of the main body part is a smooth curve surface. The cover body part is provided with a bottom surface and a surface, wherein the bottom surface is matched with the surface of the second end of the main body part. The surface of the cover body part is a smooth curve surface and is matched with the surface of the first end of the main body part to form an ellipsoid-like shape. The main body part is connected to the cover body part through the connection part. The self-locking bracket allows an arch wire to be conveniently installed and tightly fixed and has a good orthodontic effect.
Owner:吉利

Automatic packaging box sorting device of production line

The invention relates to the technical field of sorting system accessory devices, in particular to an automatic packaging box sorting device of a production line. The sorting device can adjust the position of a limiting structure according to the size of a packaging box to play a good neatening role, and can collect sundries. The sorting device comprises a workbench, four stand columns, a bottom plate, a fixing plate, an air cylinder, a containing plate, four first telescopic pipes and a supporting plate; four supporting legs are arranged at the bottom end of the bottom plate; a conveying mechanism is arranged in the right half area of the top end of the workbench; a square hole is formed in the left half area of the top end of the workbench; and a telescopic rod is arranged at the top output end of the air cylinder. The sorting device further comprises a clamping plate, a second telescopic pipe, a threaded pipe, a threaded rod and a rotating disc; a rotating hole is transversely formed in the upper half area of the left side wall of the supporting plate; and a ball bearing is arranged between the threaded pipe and the inner side wall of the rotating hole. The sorting device further comprises a collecting box, a left handle and a right handle, a working cavity is formed in the collecting box, and a box opening is formed in the top end of the collecting box.
Owner:SUZHOU INDAL PARK INSTITUE OF VOCATIONAL TECH

A Tool Gauge for Constructing Hyperbola

The invention discloses a tool gauge for drawing a hyperbola, and relates to the technical field of tool gauges. The tool gauge for drawing the hyperbola comprises a sliding rod, a fixed-origin column and fixed-focus columns. A T-shaped slot is formed in one surface of the sliding rod and matched with the fixed-focus columns. A through hole is formed in one surface of the sliding rod and matched with the fixed-origin column. Two discs are fixed to one surface of each fixed-focus column and connected in series through a cylinder. A first blind hole is formed in one surface of each cylinder. The fixed-origin column comprises a bolt, a threaded blind hole bolt, a nut and a fixed-origin needle, wherein the bolt is matched with the threaded blind hole bolt, the nut is fixed to one end of the threaded blind hole bolt, and a second bind hole is formed in one surface of the threaded blind hole bolt; and a fixed-origin needle is fixed to one surface of the threaded blind hole bolt. A thin thread is tied on the fixed-origin column and connected with a pencil through the fixed-focus columns. According to the tool gauge for drawing the hyperbola, the lengths of the portions, between the pencil and the two fixed-focus columns, of the thin thread are set as PF1 and PF2, the fixed-origin column rotates, and thus the problem that the hyperbola is difficult to draw is solved.
Owner:盐城德源智能科技有限公司

Molding processing system for circular sheet-iron packaging box

ActiveCN112845892AAvoid the situation where the entire base needs to be replacedAchieve fixationShaping toolsHollow articlesAdhesive glueMachining system
The invention relates to the technical field of production of packaging boxes, in particular to a molding processing system for a circular sheet-iron packaging box. The molding processing system comprises a base, wherein a hollow cavity is formed in the upper surface of the base; a molding die for molding the circular sheet-iron packaging box is mounted in the hollow cavity; a square hole which is matched with a positioning sleeve is formed in one side of the interior of the hollow cavity; a rectangular block which is adhered to the inner wall of the square hole is mounted in the square hole; a pin hole is formed in one side of the rectangular block; a pin column is fixed into the pin hole; an annular groove which is concentric to the square hole is formed in one side, deviated from the positioning sleeve, of the square hole; and a rubber sleeve is pasted to the inner surface of the annular groove through glue. Compared with the prior art, the molding processing system disclosed by the invention has the following benefits that through a mutual cooperation way of the pin column and the positioning sleeve, fixing of the position of the molding die is realized; and compared with a bolt connection way, the situation of damage of screw holes is avoided, the situation of replacement of the whole base is avoided, and waste of resources is reduced.
Owner:杭州安友制罐有限公司

Concrete waste removal equipment for building surfaces

The invention discloses a concrete waste removal device used on building surfaces, which comprises a device body and an I-shaped linear slide rail. Two parallel and staggered scrapers are arranged above the device body. The scraper is fixed on the upper end of the equipment body, side plates are fixedly connected to the same side of the two scrapers, and a distance adjustment mechanism is provided between the two side plates, and the equipment body is sequentially set up from top to bottom. There are a feeding trough, a storage tank, and a water storage tank. The inner bottom surface of the lower feeding tank is an inclined plane facing the storage tank. The inner bottom wall of the lower feeding tank is provided with a port communicating with the storage tank. A water pump is fixedly installed on one side of the equipment body, and the input end of the water pump communicates with the water storage tank through a pipeline. The invention has the advantages that the scraper with adjustable longitudinal length can be used to smooth uneven building surfaces, and the removed concrete can be collected and recycled to save resources.
Owner:黑龙江省建筑安装集团有限公司

Cement foam insulation cover board on the outer layer of the building wall

The invention relates to a wallboard for the field of buildings, and in particular relates to a cement foamed heat preserving cover board for a building outer wall. The cement foamed heat preserving cover board is formed by integrally compounding a surface layer and a lining, wherein a rib net is arranged between the surface layer and the lining in a solidifying manner, and more than one connecting pile is arranged on the surface of the lining. The cement foamed heat preserving cover board for the building outer wall, disclosed by the invention, is suitable for cement foamed heat preservation of various building walls, can be used for casting of a heat preserving layer of a new building, is also suitable for heat preserving reinforcement of an old building, and can enable the connection between the wall and foamed cement as well as between the foamed cement and the cover board to be stable; the wall and the cover board can be fixed with each other conveniently, the length of the connecting piles can be randomly adjusted, and the thickness of a foamed cement layer can be increased or reduced; the heat preserving layer of the building outer wall is good in strength, good in flame-retardant effect and long in service life; the cement foamed heat preserving cover board also has a function of reinforcing the wall.
Owner:大庆市碧千里科技开发有限公司

Adjustable length and automatic adaptation of system pressure to muffler and air conditioner

The invention discloses a silencer with adjustable length and self-adapting system pressure. The silencer with the adjustable length and the self-adapting system pressure comprises an air inlet, an air outlet, a middle barrel, a left barrel, a right barrel, a flow guide plate and two elastic pieces. The left barrel sleeves and is movably connected with the left end of the middle barrel and moves relative to the middle barrel in a left and right adjusting mode; the air inlet is located on the left barrel; the right barrel sleeves and is movably connected with the right end of the middle barreland moves relative to the middle barrel in a left and right adjusting mode; the air outlet is located on the right barrel; the flow guide plate is arranged in an inner cavity of the middle barrel in amatched mode and correspondingly communicates with the air inlet and the air outlet; and the two elastic pieces are correspondingly connected with the two sides of the flow guide plate and the middlebarrel. According to the silencer with the adjustable length and the self-adapting system pressure, the length of barrels can be adjusted, meanwhile, the self-adapting system pressure is realized, and finally the final effect of stably eliminating noise is realized; and the invention further provides an air conditioner of the silencer with the adjustable length and the self-adapting system pressure.
Owner:GREE ELECTRIC APPLIANCES INC

Multifunctional adjustable office chair

The invention discloses a multifunctional adjustable office chair which comprises a foot stool, a supporting frame arranged at the top end of the foot stool and extending front and back, a chair seat movably connected to the front end of the supporting frame and a chair back movably connected to the rear end of the supporting frame. An adjusting seat is arranged in the middle of the supporting frame, the adjusting seat is provided with a chair seat supporting rod piece hinged to the chair seat, a chair back supporting rod piece hinged to the chair back and an adjusting mechanism, and the adjusting mechanism can synchronously drive the chair seat supporting rod piece and the chair back supporting rod piece to move relative to the adjusting seat so that the lengths, extending out of the adjusting seat, of the chair seat supporting rod piece and the chair back supporting rod piece are increased or decreased; and the chair seat and the chair back synchronously and reversely rotate. The chair has the beneficial effects that the chair seat and the chair back can be synchronously and reversely rotated, and the comfort of a user is improved.
Owner:ANJI WEIYU FURNITURE CO LTD

An Adaptive Flow Control Method for Fiber Channel Storage Expansion

InactiveCN102984087BImprove performanceReduce the probability of timeout retransmissionData switching networksFiberExtensibility
The invention discloses an adaptive flow control method for storage extension of a fibre channel. The method comprises the steps of (1) initializing, (2) taking a fibre channel frame out of a buffer area queue head, packaging according to a protocol format of a wide area network, and forwarding a packaged data frame through a wide area network interface of a storage extension gateway by storage extension flow control protocol control and a buffer area threshold adaptive adjustment method, and (3) receiving the fibre channel frame. According to the method, the update frequency of Credit in an FC (fibre channel) flow control protocol between the storage extension gateway and an SAN (storage area network) is adjusted according to a relation between the actual queue length and high and low threshold values of an adaptive gateway cache data queue, the queuing time delay of the FC frame in the gateway is reduced effectively, the storage extensibility is improved, the link bandwidth of a storage extension network is fully used, the length of a cache queue of a receiving party is flexibly increased or decreased, and the performance of the storage extension gateway is improved.
Owner:GUANGDONG HUIXIN COMM TECH CO LTD

Oxidizing catalytic converter, tail gas after-treatment system and tail gas after-treatment method

The invention relates to an oxidizing catalytic converter, a tail gas after-treatment system and a tail gas after-treatment method. The oxidizing catalytic converter comprises a length adjusting mechanism, a front-end oxidizing catalytic converter body and a rear-end oxidizing catalytic converter body, wherein the front-end oxidizing catalytic converter body comprises a honeycomb-shaped small-hole carrier; the rear-end oxidizing catalytic converter body comprises a honeycomb-shaped pipeline carrier; the honeycomb-shaped pipeline carrier is inserted into the honeycomb-shaped small-hole carrier; and the length adjusting mechanism adjusts the staggered length of the front-end oxidizing catalytic converter body and the rear-end oxidizing catalytic converter body. Compared with the prior art, the oxidizing catalytic converter has the advantages that the staggered length between the front-end oxidizing catalytic converter body and the rear-end oxidizing catalytic converter body is changed through the length adjusting mechanism, length adjustment of the oxidizing catalytic converter is achieved, the length of the oxidizing catalytic converter can be increased or decreased under different working conditions, temperature compensation is carried out, the oxidizing catalytic converter is suitable for tail gas after-treatment systems of different types and different working conditions, and the adaptability to multiple working conditions of the engine is good.
Owner:TONGJI UNIV

Heat conduction pipe of waste gas and waste fluid waste heat recovery device

The invention relates to a heat conduction pipe of a waste gas and waste fluid waste heat recovery device. The heat conduction pipe solves the technical problems that the heat conduction pipe has the characteristics of high heat absorption efficiency and high heat transmission efficiency, and the obvious energy-saving benefits are obtained. The technical scheme is that the heat conduction pipe of the waste gas and waste fluid waste heat recovery device comprises a pipeline body made of a metal material, the heat conduction pipe is characterized in that the inner wall surface and the outer wall surface of the pipeline body are respectively provided with a plurality of heat conducting fins, and the heat conducting fins are connected with the pipeline body into a whole and can serially expand along a length direction of the pipeline body; the central lines of the cross sections of the heat conducting fins are distributed along the semidiameter of the pipeline body, and the central lines of the heat conducting fins of the inner wall surface and the central lines of the heat conducting fins of the outer wall surface are coincident; the number of the heat conducting fins of the inner wall surface and the number of the heat conducting fins of the outer surface are respectively four, and the pipeline body is bent to be in an S shape or a U shape; and the metal material is an aluminium product.
Owner:ZHEJIANG MEIGE MACHINERY
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