Rail-flaw analyzing method and rail-flaw detecting car
Water and cargo accumulation preventing structure for shipborne manhole cover
Self-elevating platform for compressing offshore oil field gas
Active hedging method and system for accidental opening of car door
High-orbit optical remote sensor vacuum hot test external heat flow simulation method
Floor lifting mechanism capable of moving and extending shelter
Integrated type power control unit for electric vehicle
General satellite sun wing expanding frame automatically adjusting levelness
Expansion mechanism for movable and extendable shelter
Electronic differential method of novel mining electric four-wheel drive special vehicle