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42 results about "Ravine" patented technology
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A ravine is a landform that is narrower than a canyon and is often the product of streamcutting erosion. Ravines are typically classified as larger in scale than gullies, although smaller than valleys.
Ecological check dam prevention and control system for three gorges reservoir region hilly land ravine agricultural non-point source pollution
ActiveCN103588303ANo energy consumptionAvoid easy cloggingSustainable biological treatmentBiological water/sewage treatmentConstructed wetlandEngineering
The invention relates to the fields of environmental engineering and ecological engineering. An ecological check dam prevention and control system for three gorges reservoir region hilly land ravine agricultural non-point source pollution is characterized in that multiple levels of ecological check dams are in trapezoidal distribution with natural fall from high to low along with the hilly land; each level of ecological check dam consists of a water storage regulating pond, a constructed wetland and a check dam main body, which are arranged sequentially according to the water flow direction; the water storage regulating pond is communicated with an overflow port in the previous level of the check dam main body. The system can effectively intercept and control the hilly land ravine agricultural non-point source pollution of the drainage basin, can reduce water and soil loss, can perform water-harvest irrigation, can reduce attenuation of channel nutrients before and after rainfall on sloping fields, and can realize ecological interception of agricultural non-point source pollutants.
Owner:WUHAN UNIV OF TECH
Method for artificial propagation of giant salamanders and cultivation of baby giant salamanders
InactiveCN102077806AHigh reproductive rateIncrease population sizeAnimal husbandryThree stageSperm motility
The invention discloses a method for artificial propagation of giant salamanders and cultivation of baby giant salamanders, which is characterized in that an ecological giant salamander farm is built in an original ecological region, the water in a cultivation pond comes from ravine streams of the original ecological region, the male giant salamanders are ecologically cultivated in classified ponds in different stages, the female giant salamanders are cultivated through indoor artificial cultivation, the male parent giant salamanders are specially cultivated by controlling water quality and water temperature and timely deploying nutrition, so that sperm motility of the male parent giant salamanders can be improved, and reproductive rate of the giant salamanders is further improved by performing selection, artificial hastened parturition and artificial fertilization on the parents; the propagated baby giant salamanders are cultivated in three stages, and disease prevention for the baby giant salamanders is performed in the feeding process. With the method of the invention, productivity of the artificially propagated giant salamanders can be more than 90%, the rate of artificial fertilization can be more than 80%, and hatchability can be more than 83.51%. By applying the method, population quantity of the giant salamanders can be improved, and scaled cultivation of the giant salamanders can be implemented.
Owner:SHAANXI HANSHUI GIANT SALAMANDER DEV
Movable cable stayed bridge with retractile bridge floor and #-shaped vertical multilevel lift bridge
InactiveCN101974882AQuick buildEasy and quick passCable-stayed bridgeBridge structural detailsCable stayedArchitectural engineering
The invention discloses a movable cable stayed bridge with a retractile bridge floor and a #-shaped vertical multilevel lift bridge. By adopting a multilevel retractile bridge floor structure, the retractile bridge floor is supported by a #-shaped cable stayed bridge, thus a bridge channel can be rapidly built so as to make people, materials and vehicles rapidly pass through rivers, broken bridges, ravines and canyons in short time. The invention has the characteristics of simple structure, rapid building, safety, reliability, movability, strong practicability and the like. The invention can be widely applied to the traffic under the conditions of rescue and relief work, emergency, military affairs, wars and the like so as to realize fast pass through the rivers, the broken bridges, the ravines and the canyons in short time and also win times for military traffic, rescue and relief work.
Owner:JILIN HENGAN ELECTRONICS MACHINERY
Wind tunnel experiment method and device
InactiveCN107356398AHigh precisionPrecise Flow Field StructureAerodynamic testingWind damageLandform
The invention discloses a wind tunnel experiment method and device. According to the method, free wind starts in the experiment model area direction; tracer particles are released, and the tracer particles are made to move in the free wind; the tracer particles in an experiment model area are irradiated; an image of the experiment model area is acquired; the image is analyzed, and a flow velocity is calculated; flow field parameters are acquired according to the flow velocity; and lastly, according to the flow field parameters, wind damage formation conditions of a power transmission line are determined. The method is advantaged in that based on the particle image velocity measurement technology, the mountain ravine landform and heavy wind disaster-caused process is really simulated, three-dimensional flow field measurement precision is improved, the more accurate flow field structure can be acquired, the wind damage conditions under different wind speed wind direction conditions can be better determined, and reliable reference is provided for complex landform flow field measurement model making and the turbulent boundary layer value simulation technology.
Owner:YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
Diluvial fan underground water seepage simulation device
The invention relates to a hydrogeological simulation device, and concretely relates to a diluvial fan underground water seepage simulation device. A simulation box comprises a rectangular box and an irregular sector box. The rear end face of the rectangular box is connected to the front end face of the irregular sector box. A water level control lifter is disposed on the front end face of the rectangular box through adjusting screws. An overflow box is disposed on the rear end face of the irregular sector box. The upper portion of the rectangular box is a simulated mountain area ravine of mighty torrent radial flows, and the lower portion of the rectangular box is a water supplying body of a diluvial fan water-containing layer. Mountain front diluvia are arranged in the irregular sector box. Two rows of pressure measuring pipes are vertically installed on one sidewall of the irregular sector box at equal intervals, and two tracer injection pipes are vertically fixed to the other sidewall of the irregular sector box. The simulation device simulates storage, supplying, radial flows and drain, zoning of hydrochemical characteristics, dynamic change characteristics and the like of underground water in the diluvial fan water-containing layer. The simulation device also helps to promote research on other hydrogeological topics of a diluvial fan.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Method for fabricating an optical sheet
Owner:SAMSUNG DISPLAY CO LTD
Emergency flattened folding ladder
Owner:唐晓腾
Full-view probing robot monobody for complex region at ferromagnetic environment
InactiveCN102699897ASmooth motionEnsure movement stabilityProgramme-controlled manipulatorRavineEngineering
The invention provides a full-view probing robot monobody for a complex region at the ferromagnetic environment, which belongs to the technical field of a probing robot moving with multiple degrees of freedom. The robot monobody comprises left and right feet and a main body; each of the left and right feet comprises a steering engine A, a steering engine B, a steering support A, a steering support B and an electromagnet; and the left foot and the right foot adopt the same connecting way and are in mirror symmetry when in assembly. The main body comprises a front cross beam and a rear cross beam; a battery box and a main control case are respectively processed at the outer side of each of the front cross beam and the outer side of the rear cross beam; and the main control case is internally provided with a single chip microcomputer. The robot monobody provided by the invention has a creative and simple mechanical structure with double coupling and 4 degrees of freedom and is high in reliability; and the robot monobody has various modes of motion, can rapidly realize the switchover between rolling motion and feet motion, can efficiently adjust gait and step pitch, can accurately and rapidly realize adjustment of moving direction in the range of 0-360degree, can realize stereoscopic motion in total space and can achieve multiple objectives of crossing obstacles and ravines, turning corners and changing directions.
Owner:BEIHANG UNIV
Imaging apparatus and imaging method
InactiveUS7990433B2Television system detailsCharacter and pattern recognitionLight exposureImaging equipment
Owner:CANON KK
Real-time monitoring device for soil erosion of ravine
InactiveCN102426040AReal-time monitoring of churnReal-time monitoring valueVolume/mass flow measurementDraining tubeWater flow
The invention discloses a real-time monitoring device for the soil erosion of a ravine, which comprises a flume, a force counteracting region and a plurality of settling basins, wherein the flume leads water in the ravine to the force counteracting region, water in the force counteracting region flows into the settling basins, the settling basins are arranged from high to low, and each settling basin is provided with a plurality of drain pipes. The real-time monitoring device is characterized in that each settling basin is provided with 10 drain pipes, the drain pipes are arranged at the same side, the diameter and the length of each drain pipe is equal to one another, one drain pipe of the upper-layer settling basin is discharged into the lower-layer settling basin, and each settling basin is provided with a current type soil monitor. The real-time monitoring device has the advantages that the size of flow can be accurately monitored, the accumulative error can be reduced, the specific numerical value of the soil erosion can be timely monitored, and the device is suitable for the field work.
Owner:辽宁省水土保持研究所
Ecological culture method for pigs
InactiveCN107950465AIncrease exerciseFavorable estrus breedingFood processingAnimal feeding stuffDiseaseAnimal science
The invention discloses an ecological culture method for pigs. The method comprises the following content: the method adopts an open air wild culture type: an arbor forest with an average tree age of10-20 years, dense trees and more fruits, wild vegetables and edible weeds under the forest, and a ravine having abundant water sources is selected as wild culture places, flat areas with sufficient illumination need to exist near each wild culture place, the number of wild culture pigs needs to have a reasonable ratio with the forest land area, the grazing number of the pigs is no more than 120 in each wild culture place, and 5-8 pigs can be grazed per mu of land. According to the method provided by the invention, the pigs are grazed, and the pigs are driven in the morning or evening according to different seasons, so that the pigs get sufficient exercise in the production process, the exercise amount of piglets is increased, and the blood circulation of the pigs is accelerated, thereby facilitating the estrus breeding of the pigs, reducing the obesity rate of the pigs, ensuring that the pigs have healthy physiques, and reducing the incidence of diseases; and the illumination time isincreased, so that the synthesis of some vitamins is guaranteed, the pork is more compact, the taste is better, and the pigs are easy to sell.
Owner:HEFEI HUAJIE LIVE
Ecological circulating outside-cage breeding method for cattle
The invention discloses an ecological circulating outside-cage breeding method for cattle. The method comprises (1) breeding cattle on a small mountain outside cages, and enabling the cattle to eat wild Chinese herbal medicines and grass and drink natural water in ravines; (2) cleaning up and massaging the whole body of the cattle by using a bamboo besom for 10-15 min everyday; (3) enabling the cattle to drink 5-8 L of rice wine, beer or rick slurry water every night; (4) playing light music to the cattle when the cattle eats grass everyday; (5) artificially putting 50-80 sparrows, hypargos and / or crested myna above every square kilometers of the breeding field for eating insects on the cattle; (6) enabling the cattle to trotting for 8-12 kilometers within 50-70 min every morning; (7) cutting artemisia annua and pelargonium graveolens into fragments with a length of 3+ / -1 cm and mixing the fragments with quicklime and spreading the obtained mixture into the mountain for killing small insects every 60-90 days; and (8) taking cattle dung, bovine urine and bird droppings as biological fertilizers of the Chinese herbal medicines and the grass. The cattle bred by using the method has wide chests, round bellies and glossy dark skins, and obtained beef is succulent and tender, is just melt in the mouth and is unique in flavor.
Owner:XIAMEN LIKASAM WATERPROOF ENG
Arrangement for levelling mantain, filling ditch to reclaim land and telluric electricity generating
InactiveCN1673526ASuccessful grid connectionSolve the shortageMachines/enginesMotorsElectricityPower grid
The present invention is one generator equipment to convert the gravitational potential energy of hill into electric energy. The generator equipment has chain conveyer in closed track to convey soil, automatic soil excavator, automatic soil feeder, automatic soil unloading apparatus to disperse soil to the deposit area. The chain soil conveyer converts the gravitational potential energy of hill into electric energy. The present invention can also flat hill and stuff ravine to reform hill into level land.
Owner:王军
Planting method for Guanyang Snow pears
InactiveCN107969271AGrow fastPromote growthExcrement fertilisersBioloigcal waste fertilisersPEARDisease
The invention discloses a planting method for Guanyang Snow pears. The method comprises the following steps: (1) arranging mountain land: preparing ravines in soil, performing solarization for 10-15 days, filling the ravines with a layer of decomposed traditional Chinese herbal medicine with the height of 3-5cm, and spreading a bio-fertilizer with the thickness of 3-5cm on the decomposed traditional Chinese herbal medicine; (2) performing fertilizer and water management; (3) performing flower and fruit management: pinching ear tips 3 days before flowering, loosening deformed and damaged grainson fruit ears in time 10 days after fruit setting, keeping 1 fruit every 15cm for long fruiting branches, keeping 1-2 fruits for short fruiting branches, when the fruit diameters reach 8cm, performing bagging by adopting paper bags of which the inner surfaces are coated with a chitosan solution, performing growing for 45 days, and spraying a disease resistant liquid to fruit trees 30min before bagging. The planting method for the Guanyang Snow pears adopted by the invention can improve the disease resistance of seedlings, can make the Guanyang Snow pears have a high yield after the pears growcontinuously for a plurality of years, and has wide market promotion value.
Owner:广西荔浦安吉利木业有限公司
Multipurpose integrated turbine generator/motor
The invention discloses a multipurpose integrated turbine generator / motor. Three or multiple turbine blades are mounted on a turbine shaft; a front bearing is fixedly mounted on a shell support plate; a seal is mounted on the shaft; the shaft rotates through an acceleration gear integrated box driving a rotor to rotate with high speed after acceleration; a stator is fixed on a center vertical plate of a shell; the device is symmetrically distributed about the center vertical plate in a left-right manner; the left and right turbine blades oppositely rotate in operation in a positive-reverse manner; and the multipurpose integrated turbine generator / motor can use sea wave, sea currents, tides, river water, ravine streams and wind power for generating electricity, and has the advantages of compact structure, high integration degree and flexible field use.
Owner:谢宛芝
Manufacturing method of titanium alloy-plastic complex
The invention provides a manufacturing method of a titanium alloy-plastic complex. The manufacturing method comprises the following steps that a titanium alloy substrate is provided; etching is conducted, so that the surface morphology that micrometer grooves are combined with nanometer holes is formed on the surface of the titanium alloy substrate; plastic is injected into the surface, with the surface morphology that the micrometer grooves are combined with the nanometer holes, of the titanium alloy substrate, and the titanium alloy-plastic complex is obtained.
Owner:UR HONGXIN TESTING TECH SHENZHEN CO LTD +1
Landscape pool for restoring water body polluted ecological environment and using method thereof
ActiveCN110981102ARealize the settlement functionTo achieve the function of degradationWater treatment parameter controlSewerage structuresEcological environmentRiver routing
The invention relates to a landscape pool for restoring a water body polluted ecological environment and a using method thereof, and relates to the technical field of water body purification. The landscape pool comprises a first dam wall, a second dam wall and a third dam wall which are sequentially arranged in the water flow direction. The upper end surface of the second dam wall is higher than that of the third dam wall; a settlement area is formed between the first dam wall and the second dam wall, a planting area is formed between the second dam wall and the third dam wall, an aquatic plant module is arranged in the planting area, at least one filtering layer plate is detachably arranged on the side, close to the second dam wall, of the third dam wall, and the upper end faces of the filtering layer plates are higher than the upper end face of the third dam wall. In a ravine stream and a shallower and narrower riverway, by arranging the first dam wall, the second dam wall and the third dam wall in the riverway, the settlement area and the planting area can be built, the settlement function can be achieved in the settlement area, the macromolecule organic matter degradation function can be achieved in the planting area, and thus the construction work amount of the landscape pool is smaller and simpler while the filtering and purifying effect is guaranteed.
Owner:广东东华生态科技有限公司
Mountain and ravine multifunctional flying crane cross-country ambulance vehicle and its control method
The invention relates to a method for performing fly-lifting rescue in mountain ravine and an off-road ambulance. A large-diameter main duct coaxial positive and negative rotation dual rotor wing or a fan bears the main lifting force; a plurality of small-diameter duct rotor wings and fans are horizontally and symmetrically arranged at the periphery of the large-diameter main duct coaxial positive and negative rotation dual rotor wing or the fan; a connecting arm can do telescopic torsional swing to do four-degree-of-freedom action and bear the auxiliary lifting force, direction control and vortex ring prevention; a variable inertia system is arranged in a fly lifter system and has the capacity of resisting turbulence transition wind; a plasma energy wave generator with a vortex ring prevention function is provided; and a fly lifter preferably consisting of the five-axis five-duct six-rotor wing or a fan is provided with an energy transmission pulling cable and is combined with an ambulance with high land off-road capability to form a multi-functional fly-lifting rescue ambulance scheme. The off-road ambulance has the take-off capability under the atrocious weather, has the arm far longer than that of the conventional lifting vertical crane, can perform long-distance lifting rescue task and solves the world problem that the conventional ambulance is difficult to go up and down the escarpment to rescue people and things to be rescued when the accident occurs in the mountain ravine.
Owner:郑鹏
River bottom material repair caterpillar chain type moveable second plowing device
ActiveCN106489321AReduce mechanical damageOvercome unevennessWater resource protectionSoil-working equipmentsChain typeCaterpillar
The invention relates to a river bottom material repair device, in particular to a river bottom material repair caterpillar chain type moveable second plowing device, and aims to solve the problems that in the existing mountain ravine streams distributed far away from power supply or small river areas with certain fall, river bottom material repair is conducted difficultly by a large-sized machine, the common mud cleaning device is not applicable to river bottom material repair or cannot finish river bottom material repair, and the working efficiency is low when an agricultural rake is used. The river bottom material repair caterpillar type moveable second plowing device comprises a longitudinal rod, a hinged plate, a bottom scraping device and two sets of bottom material stirring devices, wherein one end of the longitudinal rod is connected with the middle part of the inner cambered surface of a scraping plate; the hinged plate is connected onto the longitudinal rod; a hinged rod and a caterpillar chain belt vehicle are arranged on the two sides of the hinged plate correspondingly; one end of the hinged rod is connected with a frame body of the caterpillar chain belt vehicle and the other end of the hinged rod is hinged to the longitudinal rod; a plurality of springs are arranged between the hinged rod and the hinged plate; and a scraping cone is arranged on each caterpillar belt plate of the caterpillar chain belt vehicle. The river bottom material repair caterpillar chain type moveable second plowing device is applied to river bottom material repair.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
DEM-based dynamic basin sediment yield simulation method
The invention discloses a dynamic drainage basin sediment yield simulation method based on a DEM, and relates to the technical field of water and soil loss analys.The loess gully area is divided into three vertical distribution units including a ridge and loess slope area, a valley slope area and a trench area according to the terrain by obtaining terrain data and rainfall data of the loess gully area; a distributed runoff movement numerical model based on DEM grids is established by adopting a slope flow movement wave equation, the runoff depth, the flow velocity and the flow of each grid at any moment in the loess gully area drainage basin are calculated, the runoff and sediment yield is deduced according to a mechanical concept, and the simulation work of the dynamic drainage basin sediment yield is completed.
Owner:HOHAI UNIV +1
The method of constructing reservoirs avoiding caves in limestone areas and the reservoir structures constructed therein
ActiveCN106012951BAvoid searchingAvoid normal workMarine site engineeringKarstEnvironmental engineering
The invention discloses a method for constructing a reservoir away from karst caves in limestone areas and a constructed reservoir structure. A horizontal foundation surface flush with a gully top is formed on the slope on one side of a gully bottom of a limestone gully and is provided with a reservoir foundation pit concaved downwards, karst cave openings inside the reservoir foundation pit and in the rainwater collecting area are inspected after a reservoir wall and a reservoir bottom of the reservoir foundation pit are leveled, inspected unqualified karst cave openings are sealed, 1-5 karst cave openings close to the reservoir foundation pit in the gully bottom are not blocked, and finally an inner wall of the reservoir foundation pit is sealed. According to the method for constructing the reservoir away from the karst caves in the limestone areas and the constructed reservoir structure, practical schemes are provided for storing water through the reservoir in the limestone areas, the conception is ingenious, implementation is easy, the investment is small and the economic value is high.
Owner:李德群
Indoor manual ravine stream device and method capable of simulating ravine stream ecological system
ActiveCN111691360ASimulation is accurateForecasting Complex ImpactsHydraulic modelsMotor speedOutfall
The invention discloses an indoor manual ravine stream device capable of simulating a ravine stream ecological system. A hollow-square water tank with an opening in the top is included, an entity partis arranged in the middle of the hollow-square water tank, a sunken position is arranged in the middle of the entity part, the sunken position is used for placing of a nutritive salt adding device, the same number of stones derived from a ravine stream to be researched are evenly placed in the hollow-square water tank, a telescopic steel structure support is mounted over the hollow-square water tank, a fluorescent lamp and an illumination regulation device are arranged on the steel structure support, a temperature and humidity monitoring instrument is further included, multiple concave inserting openings are formed in the inner walls of the two sides of the hollow-square water tank, a motor is connected with a motor rotating speed controller, a connecting shaft of the motor is fixedly provided with a wheel paddle, a water flow capable of circularly flowing is arranged in the hollow-square water tank, a water inlet and a water outlet are formed in the hollow-square water tank, and areconnected with a water pump and a hose correspondingly, a screen net is arranged at the connecting position of the hose and the water pump, a photometer is arranged on the indoor manual ravine streamdevice, and the invention further discloses a method using the device for carrying out an experiment.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
A kind of method for quickly growing seedlings of shequila
ActiveCN108056024BImprove germination rateLow costHorticulture methodsPlant tissue cultureTree trunkGermplasm
The invention provides a diploprora championii fast seedling forming method, and belongs to the field of arethusa germplasm resources regeneration. According to the method, diploprora championii capsules are collected; under aseptic conditions, bud induction and proliferation rooting are performed; meanwhile, induced culture is completed; transplantable diploprora championii young seedlings are obtained. The arethusa two-step seedling forming method solves the production problems of long culture period, high cost and the like, and simultaneously solves the problems that in the prior art, sources of some precious arethusa resources are difficult to obtain; the plants grow on tree trunks of mountainous region forests with the altitude being 250 to 1450 meters or on ravine rock, and have theharsh requirements on the environmental conditions; the wild resources are few; the ornamental effect is good; the natural breeding capability and spreading diffusion capability are low; the natural updating is difficult; the excellent seed seedlings are scarce and the like. The diploprora championii belongs to national grade 2 protection plants, has higher garden ornamental values, and has the important significance on arethusa garden decoration and orchid park decoration.
Owner:FUJIAN AGRI & FORESTRY UNIV
A kind of mechanized rice seedling transplanting method
ActiveCN105409667BRealize mechanized workSuitable for mass production applicationsTransplantingCultivating equipmentsRapeseedTillage
Owner:SHANDONG RICE RES INST
Method and system for constructing rasterized surface for measuring landform fragmentation degree
The present invention relates to the technical field of gridded terrain curved surface construction, and relates to a method and system for constructing a gridded curved surface for measuring the fragmentation degree of landforms. Processed data; 3. Perform window standard deviation statistics to obtain rasterized surface data representing the degree of landform elevation difference; 4. Extract landform height difference to obtain rasterized surface data representing landform uplift and horizontal cutting depth; 5. Extract the ravine density to obtain the rasterized surface data representing the terrain cutting density; 6. Calculate and obtain the rasterized terrain surface to measure the fragmentation degree of the landform. The invention can accurately describe and express the true degree of landform fragmentation, and is beneficial to constructing various geoscience indexes and depicting corresponding geographical environment forms.
Owner:云南户外图科技有限公司
A kind of torrent monitoring collection device and torrent monitoring method in arid desert area
ActiveCN111811588BRealize automatic monitoringEfficient acquisitionHuman health protectionVolume/mass flow measurementAridStream bed
The invention belongs to the fields of hydrogeological investigation and environmental monitoring, and in particular relates to a monitoring and collecting device and method for gullies and torrents in arid desert areas, including: extracting the distribution map of main valleys in the monitoring watershed; selecting relatively smooth and regular riverbeds in different sections of main catchment valleys The relatively flat place is used as a monitoring section; the automatic water level and temperature observer is buried in a certain depth in the middle of the valley; the geometric parameters of each section are measured manually; after the rainy season is over, the geometric parameters of each section are measured again, and the buried probes are collected. Calculation formulas or graphic methods are used to process the monitoring data. The invention has the advantages of simple implementation, low monitoring cost and reliable measurement results, and is especially suitable for the monitoring work of gullies and torrents in arid desert uninhabited areas.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
A line safety patrol device and using method thereof
ActiveCN111071442BReduce crossingReduce the hidden dangers of safety accidentsRemote controlled aircraftCable installation apparatusWireless transmissionRemote control
Owner:STATE GRID JIBEI ELECTRIC POWER CO LTD TANGSHAN POWER SUPPLY CO +1
Natural sculpture method
InactiveCN1927603ASimple preparation processLow costDecorative surface effectsOrnamental structuresCliffCarve out
The invention belongs to sculpture technical fields, it is a natural sculpture technique which washes away the traces of artificially carved using of water scouring to making the products have a lifelike and natural effects. The invention uses the ordinary fast-drying cement and fine sand as the major raw material. Building up the figure of the scenes after adding water and stirring, scouring the surface of figure after carving out some larger sculpts by hands to making the surface show natural scenes, such as rivers, ravines, cliffs, precipices and so on. Moreover, due to the erosion of water can wash away the traces of artificial carving, the products are more lifelike after sprinkling the figure surface with color cement. Hence, the technique of producing natural landscape is simple, low cost, and the products are natural and lifelike.
Owner:刘绍青
Trenchless pipeline installation system
A trenchless pipeline installation system and method are provided. The system and method may utilize a venturi pipe system located behind a drill bit and a pipe pushing device to help pull a pipe / cable underground in a continuous one-step process. The system combines a pipe casing, venturi system, mud motor and drill bit in a single, compressed system with a small diameter. The system is especially suitable for allowing a one-step installation of smaller-diameter pipe or cable line under, for example, rivers, hills, ravines, roads, railroads, streets, agricultural and residential areas.
Owner:VASILY ANISHCHENKO +2
A kind of partially three-dimensional cave stone tile
ActiveCN104058779BExtended service lifeImprove skid resistanceCeramicwareCold resistanceMaterials science
Owner:FOSHAN DONGPENG CERAMIC +2
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