在喷煤过程中，提高风温（）提高煤粉的燃烧气化。

考试设计管理是实施考试的（）工作，是影响考试质量的关键环节。

我们经常在搜索时使用组合关键词来提高检索的效率，下列表达式中，具有相同搜索效果的是（）。 ①深圳夜景 ②深圳OR夜景 ③深圳-夜景 ④深圳+夜景

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。

坚持执行（）制度和停炉前煤粉仓空仓制度。

一般认为高炉喷吹煤粉浓度大于（）为浓相喷吹。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。