（）的确定主要取决于混凝土的强度和耐久性。

混凝土建筑物裂缝处理方法的选择，主要取决于裂缝的性质、部位及危害程度。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在混凝土配合比确定时，混凝土强度试验至少应采用（）个不同的配合比。

水泥确定后，混凝土的强度主要取决于（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

水泥混凝土抗压强度试验步骤主要包括（）。