It was only when the hull was hanging freely from the lifting frame, clear of the seabed and the suction effectof 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
Whether the apportionment scheme is reasonable and equitable will effect the realization of encouraging salvage directly.
分配方案的合理、公正与否直接影响鼓励救助这一目的能否实现。
3
Objective To study the effectof ICU care in clinical emergency salvage and cure of patients with severe illness.