当流体的雷诺数（）2300，流体的流动状态是紊流。

当流体处于紊流状态时，流体内力主要表现为液体质点的（）。

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.

流体机械是以流体为工作介质进行能量转换的机械。

流体在圆形管道中流动，无论层流或紊流，管壁处流体速度均为零。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

流体静力学基本方程式实质上是讨论静止流体（）部压力变化的规律。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。