圆盘形触头适用于开断电流比较大的真空断路器。

翻译：With Average or With Particular Average（WA or WPA）（）

真空断路器是指灭弧介质和触头间隙的绝缘介质是高度真空空气的断路器。 ( )

可以在（）阶段采用Make-or-buy决策分析。

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。

真空断路器动触头的操作由电空机械装置和合闸过程中的（）同时完成。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。