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单词 甲醛
例句 DEFINITIVE EXAMPLES 权威例句〔react〕Methane reacts with hydroxyl to produce formaldehyde.甲烷与羟基反应生成甲醛美国传统〔urea-formaldehyde resin〕Any of various thermosetting resins made by combining urea and formaldehyde and widely used to make molded household and industrial objects.脲甲醛树脂:混合脲及甲醛而得到一种热固树脂,主要用于制作铸模的家用或工业用物品美国传统
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