Power assisting device and aircraft cabin door with same
The interlaminar shear and fatigue performance of pavement structure connected by the nail
The interlaminar shear and fatigue performance of pavement structure connected by the nail
Smooth lever sliding cylinder assembly and double-opening sliding plug door system
Power plant vehicle real-time track monitoring equipment based on wireless communication technology
A Novel Menthol-Cementing Sampling Technique for Cohesionless Coarse-Grained Fillers
Rail hoisting structure and suspension type rail transit system
Buoyancy fishing device based on underwater explosive searching and removing