Battery charging detection method and device and terminal equipment
Lifting type headrest for sleeping berth and sleeping berth with headrest
Re-entry trajectory optimization using an hp-adaptive Radau pseudospectral method
Hybrid intelligent rail transit system and operation method
Re-entry trajectory optimization using an hp-adaptive Radau pseudospectral method
Front wheel turning electric actuating device for unmanned aerial vehicle
Quick mounting device suitable for car lamp dimming screw