Adsorption and driving device of underwater hull cleaning robot and working method thereof
Avoidance-free intelligent three-dimensional parking system
Cleaning device of underwater hull cleaning robot and working method of cleaning device
Control system for underwater ship cleaning robot and working method thereof
Cruising type unmanned aerial vehicle pesticide spraying device
Flow precise regulation and control pumping pressure propelling system for satellite
Method and device for detecting electric field intensity of vehicle wire harness
Method and facility for placing decommissioned large equipment in disposal unit