对于有缺陷的桥梁，常用的加固、改造技术和方法有减轻恒载、加固临界杆件、改善原结构的受力体系、（）以及增大桥梁承受活载的能力。

桥梁承台基坑的开挖尺寸应根据（）条件确定。

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。

桥梁工程监督检测的项目宜包括（）。

桥梁定期检查中规定，对于临时桥梁每年检查不得少于（）

桥梁工程中，钻孔灌柱桩，成孔质量检测项目有（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。