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
The hull was attached to a lifting frame via a network of bolts and lifting wires.
船体通过一个由螺栓和起重线组成的网络连接到吊架上。
3
In this stage, the lifting frame was fixed to a hook attached to a crane, and the hull was lifted completely clear of the seabed and transferred underwater into the lifting cradle.