4周搞定2000+托福核心词
甲醛
formaldehyde
常考释义
The original patent outlined a three-stage process, in which phenol and formaldehyde (from wood or coal) were initially combined under vacuum inside a large egg-shaped kettle.
最初的那份专利描述了一个分为三步的工艺过程。首先，苯酚和甲醛(来自于木头或木炭)在一个巨大的椭圆体真空罐内发生化合作用，
来源于：剑雅5-Test2n. 甲醛【化】
Ditch your mercury-, formaldehyde- and lead-laden cosmetics for homemade mascara and eyeliner.
别再用含汞、甲醛和铅的化妆品了，你可以自制睫毛膏和眼线笔。
The level of formaldehyde gas in her kitchen was twice the maximum allowed by federal standards for
她的厨房内甲醛气体浓度是允许化工工人工作的联邦标准的两倍。
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