长管的总水头线与测压管水头线（）

长管的总水头线与测压管水头线( )

恒定均匀流过水断面上各点的测压管水头都相同。

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.

水力半径指过水断面画积与其半径之比。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

均匀流的同一过水断面上，各点流速相等。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。