Soft-touch luminous ornament material as well as preparation method and application thereof
Manufacturing method of soft light-transmitting coating piece with customized pattern
Integrated control system for magnetoelectric thruster
Fault diagnosis and safety control system and method for crane chassis hydraulic system
Three-degree-of-freedom angular-displacement-free damping device
Underwater remaining unexploded biochemical ammunition fishing device
Electric power overhaul device for electric power overhaul