（）, 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.

实际燃烧温度都（）理论燃烧温度。

燃烧温度是指燃烧产物被加热的温度。

实际燃烧温度都高于理论燃烧温度。（）

燃烧温度是指燃料完全燃烧后的（）温度。

实际燃烧温度永远低于最高燃烧温度。（）

燃烧炉的限定燃烧温度是850℃左右，燃烧炉的尾气排放温度是（）℃左右。

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。