标准缓冲溶液是用于（）其他缓冲溶液PH值的一种（），其PH值由（）测定确定。

曝气池控制标准中，曝气池中PH值的控制范围为（）。

消防给水系统的水的pH值的范围为（）。

下列游泳池中，（ ）应分别设置各自独立的池水循环净化给水系统。

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。

pH值的意义是什么？怎样测定？水的pH对配制乳化液有什么影响？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。