如图所示的对接焊缝连接，钢材为Q235，焊条E43型，手工焊，焊缝质量为

手工焊对接焊缝时，如果被焊件特别厚，宜采用的坡口（）。

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。

从焊接方式上看，其焊缝质量手工电弧焊（）埋弧焊。

从焊接方式上来看，其焊缝质量手工电弧焊（）埋弧焊。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

对接焊缝开坡口的目的是为了保证焊透，保证良好的焊缝成形和内在（）。