A hybrid evaluation model for flight performance based on bacterial foraging and Elman network
Vehicle-mounted positive pressure air purification system
Noise reduction mechanisms for the inclined leading edge vaned diffuser in a centrifugal fan
Noise reduction mechanisms for the inclined leading edge vaned diffuser in a centrifugal fan
Battery grabbing and positioning method, positioning device and battery replacement equipment
Combined system of high-speed rail air conditioner and high-speed rail seat
Crane with three-dimensional space moving performance
Research on vibration characteristics of rocket engine flow pipeline
In-vehicle radar detection method and device and vehicle
Steel wire rope electric hoist with high safety coefficient
Non-contact elevator buttons and elevator calling method