AU2021100086A4
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Flexible connection structure of gas extraction drilling stability maintenance device
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CN112284683A
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Method and system for observing wave system evolution process of premixed gas deflagration flow field
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Rescue robot and method for searching trapped people for fire fighting
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Rescue robot and method for quickly cleaning building collapse materials
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Reusable constant-resistance suspension top beam
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Device for realizing wave absorption and energy absorption of metal copper mesh porous structure in gas/air premixed gas deflagration experiment
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Double-end water plugging device and method for preventing drill hole from being plugged
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Double-end water plugging device and method integrating drilling track positioning function
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Flame-retardant polyurethane material and preparation method thereof
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Cascaded high-gain step-down power electronic transformer based on switched capacitor
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System and method for testing flame propagation speed in premixed gas deflagration process
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Double-end water plugging device integrating drilling peeping function and method
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GBDT model-based water quality characteristic mineral water classification method
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New media management platform based on computer network
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CN112257763A
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Mine water inrush source distinguishing method based on feature selection and AdaBoost model
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CN112257336A
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Mine water inrush source distinguishing method based on feature selection and support vector machine model
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SVM (support vector machine) model-based water quality characteristic mineral water classification method
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AdaBoost model-based water quality characteristic mineral water classification method
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CN112238544A
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Environment-friendly 3D printing material processing device
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CN112194162A
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Preparation method of anhydrous barium carbonate crystal with special morphology
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