Battery temperature adjusting system and vehicle comprising same
Elevator traction force detection equipment and detection method thereof
Automobile hollow bottom cover adopting honeycomb ventilation structure
Connecting piece for end support of automobile engine
Anti-toppling device for stacked materials in carriage
Bilateral independent two-gear electric driving device for tracked vehicle
Method and system for predicting slippage of elevator
Elevator fault detection system and method based on current monitoring and unmanned aerial vehicle
Wear-resistant elevator traction sheave and abrasion loss monitoring device thereof
Double-energy-absorption automobile anti-collision device
Method for measuring length of ship body on inclined slipway