Automatic magnetic mooring device and automatic magnetic mooring system
Deepwater heavy-load seabed synthetic fiber cable conveying winch system and using method thereof
Ship epidemic prevention air-conditioning system and using method thereof
Method for collecting and extracting behavior of vehicle passing through curve
Overhead transmission line X-ray inspection device based on unmanned aerial vehicle platform
Large-span rail-mounted platform lorry with prestressed structure
Hoisting device for filter maintenance and application method
Elevator speed detection device and anti-unbalance-loading and self-balancing system based on same