Welding method for corrugated plate of lower inclined plane of liquid cargo tank
Vehicle queue control mode switching system and switching method based on neural network
Mark III type LNG fuel tank pump well installation center positioning device
Fixing device for hoisting reinforcing steel bars for building construction
Novel fixing device for hoisting reinforcing steel bars for building construction
Damage state diagnosis method based on improved acoustic emission density clustering
Electric tractor for pipeline transportation in comprehensive pipe gallery and using method thereof
Special transport trolley for roadway non-repeated supporting device