AU2020103791A4
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Complex resistance measurement system and method for nitrogen displacement of coal bed gas
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CN112169242A
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Composite gas-liquid two-phase fire extinguishing agent for inhibiting flame enhancement at initial stage of water mist fire extinguishing
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CN112253120A
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Coal mine waste resource fluidization co-mining method
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CN112228059A
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Coal rock identification automatic height-adjusting drum shearer based on 5G and infrared thermal imaging
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CN112247684A
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Ultrasonic vibration assisted hydraulic inner hole honing device and working method thereof
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CN112229759A
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Portable coal gas content testing device and method
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CN112209941A
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Method for extracting purified liensinine from erythrina indica
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CN112246983A
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Demoulding device and demoulding method of stamping die
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CN112253413A
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Inductively coupled two-stage plasma thruster
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CN112206773A
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Catalyst for preparing ethanol from cellulose and preparation method and application thereof
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CN112277501A
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Foldable english teaching frame
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CN112168914A
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A topical analgesic and hemostatic medicine extracted from natural Chinese herbal materials
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CN112253106A
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Be used for coal-winning machine cylinder fiber grating intelligent recognition coal petrography device
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CN112246215A
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Method for preparing adsorbing material for water treatment by using coal gangue as raw material
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CN112193763A
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Belt deviation detection system of belt conveyor
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CN112193765A
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Material accumulation detection system for belt conveyor head
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CN112121687A
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Anchoring agent agitating unit is used in laboratory
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CN112278777A
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Belt-breaking grasping device for conveyor
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CN112144081A
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Device for dissolving and removing metal capillary electroforming core mold and demolding method
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CN112279609A
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Zero-cement mortar taking desulfurized ash as raw material and preparation method thereof
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