| 单词 | quaternary ammonium compound |
| 释义 | quaternary ammonium compound【化】 季铵化合物; 四级铵化合物 quaternary ammonium compound quaternary ammonium compound n.（名词）Any of a group of compounds in which a central nitrogen atom is joined to four organic radicals and one acid radical, used as antiseptics, solvents, and emulsifying agents.基铵化合物：一种化合物，其中中心氮原子与四个有机原子因和一个酸基相连接，用作防腐剂、溶剂和乳化剂 |
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