英语语法分析

The synthetic ratio was over 90%, content of acetaldoxime was over 35% and relative purity of the product was over 95%.

该工艺肟化收率在90%以上，产品中乙醛肟含量大于35%，相对纯度高于95%。

OBJECTIVE acetaldoxime was prepared by using acetaldehyde and hydroxylamine sulfate as main materials then methylthio acetaldoxime was synthesized by using the former products as main material.

目的本文研究了以乙醛和硫酸羟胺为主要原料合成乙醛肟，并以乙醛肟为原料合成甲硫基乙醛肟的工艺。