（）, 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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

保护比是避雷器保护特性的一个指标，其值越高，保护性能越优越。

超调量是表示系统（）的一个指标，其值越小，说明调节过程进行的越（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

用氯仿沥青“A”含量可以判别烃源岩的有机质丰度，其值越高，有机质丰度指标越高。

用氯仿沥青“A”含量可以判别烃源岩的有机质丰度，其值越高，有机质丰度指标越高。