It was only when the hull was hanging freely from the lifting frame, clear of the seabed and the suction effect of the surrounding mud, that the salvage operation progressed to the second stage.
只有当船体从升降架上自由悬挂，脱离海床和周围泥浆的吸力作用时，打捞工作才进入第二阶段。
2
I mean just two characters on the stagehanging around basically doing nothing.
我是说只有两个角色在舞台上晃荡，基本上无事可做。
3
The spatial steel frame bearing construction loads and directly hanging formwork must be calculated by two stage design method recommended in this paper.