Automobile seat based on concave hexagonal negative poisson ratio cellular structure
Balancing device of super-long and super-heavy hydraulic lifting operation platform
Differential electric steering system and electric automobile thereof
Phase-control closing method and heavy-load locomotive circuit breaker
Lithium battery active equalization system and method based on double-layer topology
Unmanned aerial vehicle inhabiting bionic claw device
Hydrogen energy power generation device and hydrogen energy power generation vehicle
Fairing of high-strut main landing gear of large seaplane
Automobile cleaning and repairing integrated operation method and system
Battery replacing system for chassis of power-driven passenger car and battery replacing method