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。

山西大学改为国立后，工学院存在哪些系？（）

喷丸除锈时，用于铸件除锈铁丸的直径为（）。

除锈液和除锈膏等材料一般用于（）除锈方法中

弹丸除锈法用于零件或部件的（）除锈。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

角磨机主要用于磨削钢材和石材等，常用的磨片直径有（）