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person:("wang, junhua")
Aircraft carrier capable of rapidly and continuously taking off and landing shipboard aircraft
Front-steering ship front steer and steering hole enclosing apparatus
Battery pack locking mechanism and battery pack locking device
Aerogel heat insulation layer and preparation method thereof
Equipment for vertically transporting and hoisting air pipe
Detachable internal thermal insulation material and preparation and assembly method thereof
Instrument desk tubular beam for truck and machining process of instrument desk tubular beam
Light truck breast board and processing technology thereof
Energy control method and equipment for long-endurance fuel cell unmanned aerial vehicle
Combined inclined tension spring airfoil unfolding mechanism