extinguishing agent

基本解释

Carbon dioxide is nonflammable and is an extinguishing agent for Class B &C fires.
二氧化碳是不可燃的，它是用于B类或C类火灾的灭火剂。
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As one of substitutes for fire-extinguishing agent of halogenated hydrocarbon, fire-extinguishing agent of halogenated hydrocarbon produces lots of acid gases.
作为哈龙灭火剂气体替代物之一的卤代烃类灭火剂用于灭火时会产生大量的卤化氢酸性气体。