锯齿形天窗采光效率比纵向矩形天窗高。

矩形天窗、平天窗、锯齿形天窗三者，以锯齿形天窗的采光效率最高。

矩形避风天窗的挡风板支承方式有立柱式，（）

平天窗的形式很多，其共同的特点是采光口位于水平面或接近水平面。由立体角投影定律可知，平天窗的采光效率比其他所有天窗都高，约为矩形天窗的（）倍。

平天窗的形式很多，其共同的特点是采光口位于水平面或接近水平面。由立体角投影定律可知，平天窗的采光效率比其他所有天窗都高，约为矩形天窗的（）倍。

利用天窗排风的工业建筑可不设避风天窗的情况是（）

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。