Wind power hoisting is a very important task, especially in offshore wind power hoisting, we must do a good job in all aspects of protection. For wind power hoisting, we generally need to pay attentio

Dredging is an underwater earthwork excavation project that uses manpower or machinery to dredge, expand or excavate deep rivers, lakes and other waters. For a long time, channel dredging has been an

(1) Investigate the landscape image, water depth, water temperature, flow rate and other environment of the operation area. It can be operated only when the wind force on the water surface is less tha