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ULTRASOUND UNDERWATER DETECTION METHOD FOR AIR ROTOR AND PROPELLER CO-DRIVEN UNMANNED AERIAL VEHICLE
Design method of brake boosting assembly and brake boosting assembly
Layout structure of converter device in new energy hybrid power locomotive
On-demand plug-in water-land-air multi-mode operation robot
On-beam inverted super-long equipment rail mounting structure and construction method
Multi-stage transferring and hoisting method for large-size purification equipment of sewage plant
Lifting device capable of achieving hooking and unhooking on its own
Pressure accumulation type deep sea suspension depth setting device
Heavy-load field robot snowfield sole surface with automatic snow removal function
Device for preventing upright post from being damaged by heaving and sinking and construction method
Track walking device and railway engineering maintenance vehicle
Automobile expansion cabin and control system thereof
Mechanical and electrical mutual conversion and generator device