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The effects of reactant ratio, reaction time, catalyst amount,the species and amount of deaquation reagent on the yield of benzaldehyde 1,3-butanediol acetal were investigated.

对甲醛与1,3-丁二醇在钒磷氧催化作用下的缩醛化反进行了研究,考察了醇醛比、反时间、催化用量、带类和体积等因素对甲醛1,3-丁二醇缩醛收率的影响。

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in-and-in, in-and-out, in-and-outer, inane, inanely, inang, inanga, inanimate, inanimation, inanition,

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原声例句
化 Crash Course

If you were paying attention, you learned that alcohols are organic compounds with hydroxyl groups, if you dehydrogenate them, the hydroxyl converts to a carbonyl and they become dehydrogenated alcohols or aldehydes.

你留心的话，你就会知道醇是带有羟基的有机化合物， 你将它， 羟基就会转化为羰基， 它就会变成的醇或醛。

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inappetent, inapplicability, inapplicable, inapplication, inapposite, inappositely, inappreciable, inappreciably, inappreciaple, inappreciation,

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