音标：['meθәnæl] ；

n. 〈化〉甲醛

n a colorless poisonous gas; made by the oxidation of methanol

词型变化：名词复数形式 : methanals

methanal的用法和样例：

例句

用作名词(n.)

It introduces a process of synthesizingmethylenebisacrylamide from acrylamide and methanal,method of sample analysis and discusses the conditions and influencing factors.介绍了以丙烯酰胺和甲醛为原料合成亚甲基双丙烯酰胺的工艺过程和样品分析方法，并对工艺条件及影响因素作了讨论。

【近义词】

formaldehyde甲醛

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