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Vehicle-mounted monitoring and counting system based on solar energy
Underwater power-input-free flexible gripper and robot
Hoisting frame for flexible steel shed tunnel installation and hoisting method
Emergent breakdown truck for communicating optical cable
Shield tunneling machine cutterhead, cutter changing method and shield tunneling machine
Double-bearing double-guide rigid short dropper for subway
Electric automobile torsion girder type driving system and driving method of same
Adhesive sizing material as well as preparation method and application thereof
Dual-clutch planetary petrol-electric hybrid dual-mode hybrid power system
Integrated type planetary gear oil-electricity parallel serial two-mode hybrid power system
Expansion joint suitable for low-clearance lightweight busbar
Walking lifting device with telescopic working platform and using method of walking lifting device