航空航天是人类拓展（）的产物。

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。

零动量姿态控制系统与偏置动量姿态控制系统的主要区别。

偏置动量飞轮系统的原理。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

南京航空航天大学图书馆的网址是（）。

南京航空航天大学图书馆网站站主页网址是（）