Design method of tire with and without shared contour
Handheld auxiliary flight control method and device for manned turbojet aircraft
Sound insulation elevator and sound insulation and noise reduction device
Thin plate deformation control tool and control method
Fire-resistant protection device for precipitation valve of aircraft fuel tank and aircraft
Aircraft single-hand control handle and control method thereof
Highway traffic safety early warning system carried on unmanned aerial vehicle and method
Forklift battery management system based on Internet of Things
Mortise and tenon joint assembly type shielding wall body for marine reactor cabin