In this thesis, the reaction of aldehydes with dimethyl -- dichlorosilane producingdimethylsilyl bis -- enol ethers has been studied.

本文对醛和二甲基二氯硅烷反应合成二甲硅基双烯醇醚进究。

Our neighbour's a very careless bis driver; he never thinks about what he's responsible for.

我们的邻居是个粗心意的公共汽车驾驶员,从虑自己有什么责任。

Preparation of ethylene bis stearamide using stearyl chloride and ethylenediamine (EDA) as raw materials has been studied.

究以乙二胺和硬脂酰氯为原料制备乙撑双硬脂酰胺的反应,讨论原料配比、反应时间、反应温度的影响。