钎焊用的钎料的熔点要比母材熔点（）。

系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。

在机械制造业中铆工属于（）。

Shutdown price（or point，or rule） 停业价格（或停业点、停业原则）

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

在搜索引擎中输入检索式：“公司OR企业”表示检索结果（）

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

试述钎焊过程中溶解作用对钎焊接头的影响。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。