刚架是指梁和柱之间为（）连接的结构。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

框架结构的力学特征是：梁和柱的结合点为（）。

多层建筑常用的结构形式为混合结构、（）。框架结构指由梁和柱刚性连接而成骨架的结构。框架结构的优点是强度高、自重轻、整体性和抗震性能好。因其采用梁柱承重，因此建筑平面布置灵活，可获得较大的使用空间。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

轻钢门式刚架结构通常是指由实腹式直线形杆件(梁和柱)通过 连接起来的 “ 门 ” 字形钢结构,主体结构为单层单跨或单层多跨的承重刚架 。