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Underwater vehicle and detachable superstructure thereof
Titanium alloy elastic beam type inter-board water ballast tank and diving system
Two-gear hybrid power coupling mechanism, control system and control method
Two-gear hybrid power coupling mechanism, control system and control method
Vibration and noise reduction shielding door of urban rail transit station platform
Input shaft and screw assembly of electric steering gear
Electric lifting device for power grid maintenance tool
Mining dump truck engine and air conditioner double-loop heating control system and method
Power steering device for improving stability of steering wheel