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Foldable continuum flight operation mechanical arm based on paper folding principle and aircraft
Traffic police iron riding mobile law enforcement method, device thereof and system
Leatheroid vehicle with factory environment material color light indication
Device for preventing exhaust tail pipe from being blocked
Bullet-proof and landmine-proof structure for vehicle and landmine-proof anti-ambush vehicle
Intake-exhaust transport apparatus mobile power generation system and assembling method thereof
INTAKE-EXHAUST TRANSPORT APPARATUS MOBILE POWER GENERATION SYSTEM AND ASSEMBLING METHOD THEREOF
Charging control system of Internet of Things and control device thereof
Stable self-adjusting detection box, detection system for ship and detection method
oil-electricity hybrid power system of gantry crane and driving method
Vertical hoisting method for pole-mounted transformer