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2024
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Invention
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Low rcs metasurface-based array antenna. The present invention relates to the technical field of ... |
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Invention
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Coal water slurry concentration device.
Provided is a concentration device for coal water slurry... |
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Invention
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Physical simulation device for testing microbial enhanced coal seam gas desorption efficiency. Di... |
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Invention
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Synchronous detection system and detection method for trace nitrogen-oxygen compound based on pho... |
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Invention
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Underwater robot for mine flooding rescue.
Disclosed is an underwater robot for a mine flooding ... |
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Invention
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Tandem methods and devices for separating coal and gangue based on visible light and x-rays. Tand... |
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Invention
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Downhole optical fiber installation and grouting integrated device. A downhole optical fiber inst... |
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Invention
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Multi-shear end surface damage seepage dynamic test system. A multi-shear end surface damage seep... |
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2023
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Invention
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Suitability evaluation method for developing underground coal gasification engineering by utilizi... |
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Invention
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Method for measuring gas pressure of close-distance seam group simultaneously. th layer of seam; ... |
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Invention
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Preparation method for and use of biomass material. The present invention relates to the technica... |
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Invention
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Gunpowder combustion characteristic testing device. A gunpowder combustion characteristic testing... |
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Invention
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Coal and gangue separation method and device based on combined use of visible light and x rays. A... |
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Invention
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Washing, screening and drying integrated modular sampling device for construction aggregates and ... |
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Invention
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Excavation tunnel full-waveform inversion method based on multi-parameter constraint and structur... |
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Invention
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Coal body permeation-wetting experiment system based on solution in-situ pressure injection. A co... |
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Invention
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True triaxial rock-soil mass test device and test method therefor. A true triaxial rock-soil mass... |
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Invention
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Method for assessing suitability of carrying out underground coal gasification engineering by usi... |
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Invention
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Large-size true triaxial coal-rock mass multi-field seepage coupling system experimental device a... |
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Invention
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Active and passive composite turbulent vortex multi-stage enhanced coal slime classification appa... |
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Invention
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Multistage washing and screening device for coal treatment. Disclosed in the present invention is... |
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Invention
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Goods sorting system. The present invention relates to the field of goods sorting, and provides a... |
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Invention
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Threaded workpiece surface roughness prediction method in cyclone milling considering influence o... |
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Invention
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Method for predicting three-dimensional frost heaving deformation of stratum caused by freezing-m... |
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Invention
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Sealed coring device for underground coalbed.
The sealed coring device for an underground coalbe... |
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Invention
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Novel underground coal seam closed coring device. The present invention relates to the technical ... |
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Invention
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Integrated rapid measurement apparatus for calcium oxide content in limestone ore. An integrated ... |
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Invention
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Overlying strata damage partition and height determination method based on permeability-damage re... |
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Invention
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Rock creep model viscoelasticity parameter acquisition method based on deformation modulus. A roc... |
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2022
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Invention
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System and method for detecting concentration of free sio2 in coal dust. 2 content. |
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Invention
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Multi-scale and multi-parameter collaborative testing device and method for true triaxial hydraul... |
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Invention
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Device and method for fine probing of formation and expansion of cracks during loading of rock sp... |
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Invention
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Gas pressure maintaining split hopkinson pressure bar confining pressure device and usage method ... |
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Invention
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Composite coating, preparation method therefor and use thereof. 33), wherein M comprises one or m... |
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Invention
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Water coal slurry concentration device. A water coal slurry concentration device, which belongs t... |
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Invention
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Attitude self-correcting underground transportation apparatus based on uwb technology and control... |
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Invention
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Improved low-toxicity and highly efficient pharmaceutical excipient of orthoester mixture, method... |
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Invention
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Economical optimization policy construction method for lateral stability control over electric ve... |
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Invention
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Device for testing dynamic load impact on anchoring body test piece under gradient stress and tes... |
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Invention
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Test device and method for dynamic load impact on rock mass under two-dimensional gradient stress... |
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Invention
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Broadband solar cell antenna. The present application discloses a broadband solar cell antenna. T... |
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Invention
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Rooftop air conditioning system based on solar energy and waste heat recovery, and use method. Di... |
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Invention
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Hydraulic coupling experiment device and method having ct real-time scanning function. A hydrauli... |
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Invention
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Intelligent experimental device for collaborative mining of associated resources. An intelligent ... |
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Invention
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Device and method for simulating underground pipeline leakage during shield construction process.... |
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Invention
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Real-time mine dust detection system and method based on double photoacoustic spectrums. 22 in du... |
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Invention
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System and method for detecting concentration of free silicon dioxide in coal dust. 2222222 in co... |
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Invention
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Underwater robot for mine water seepage rescue. An underwater robot for mine water seepage rescue... |
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Invention
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Trace nitrogen oxides synchronous detection system and detection method based on photoacoustic sp... |
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Invention
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Intrinsically safe and explosion-proof photoacoustic spectroscopy dust measurement device. An int... |
