吊杆是承吊桥面的杆件，吊杆材料的许用应力应大于（）。

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。

我国97值班规则第八章驾驶、轮机联系制度规定（）。Ⅰ、因装卸货导致船舶倾斜，值班轮机员可以调整压载Ⅱ、甲板部使用重吊装卸时，轮机长必须在现场监督Ⅲ、添加燃油前轮机长应将添加数量及舱位告知大副Ⅳ、因机械故障不能执行航行命令，轮机长应立即组织抢修

吊杆应通直，当吊杆长度大于（）时，应设置反支撑。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

当吊顶工程吊杆距主龙骨端部距离大于（）时，应增加吊杆。