对使用中的立井罐笼防坠器，每次进行不脱钩试验的时间为（）个月。

锦江学院的创办早于四川中西学堂。

华东理工大学网络教育实行的是弹性学制，高起专和专升本两种层次的学习年限均是（）

罐笼制动绳防坠器布置中,缓冲器的作用是( )

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

国家鼓励和支持开发、生产、推广、应用（）的农业机械，建立健全农业机械安全技术标准和安全操作规程。

机械双盘天平是应用什么原理来制造和工作的？请对该原理加以解释。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。