抽水试验根据抽水顺序可分为（）抽水和（）抽水试验。

抽水试验类型很多，其基本类型有单孔抽水、（）、群控干扰抽水、与实验性抽水

根据抽水试验井的类型，可将抽水试验分为（）和（）抽水试验。

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。

简述抽水试验的概念

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。