作业中，当桩锤冲击能量达到最大能量时，其最后10锤的贯入值不得小于（）。

冲击电压试验主要是考验被试设备在操作过电压和雷电过电压的作用下，其绝缘的承受能力。又分为操作波冲击电压和雷电冲击电压试验。

在小能量多次冲击条件下,其冲击抗力要取决于材料的( )。

冲击性能是指钢材抵抗冲击荷载的能力，对其冲击性能有明显影响的（ ）。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

当材料承受的载荷是大能量较少次数的冲击时，则材料的冲击韧性主要取决于材料塑性。