Water body surface layer intelligent cleaning device and method under hydrodynamic condition
Turnout grinding wagon body structure and grinding wagon
Train ground door linkage control method and device, platform door controller and medium
Tower crane embedded section supporting horse stool system and construction method thereof
Tool for transporting light partition wall and manufacturing method thereof
Shell-free counterweight and preparation method and application thereof
Multifunctional intelligent water surface garbage cleaning ship
MULTI-ELEVATOR VERTICALLY-LIFTING THREE-DIMENSIONAL PARKING GARAGE
Lane vehicle detection control device, system and method
Fixed electric bicycle centralized anti-theft management system and using method thereof
Fault removing device capable of being used as end plough and railway vehicle
Electrically-controlled transport ladder piece for photovoltaic panels
Design method of watertight/weather-tight special opening and closing door for unmanned ship
Compact hydraulic tail gate with lifting function and control method thereof