bis

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二甲硅基烯醇醚进行了研究。

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大意的公共汽车驾驶,从来不考虑自己有什么责任。

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

研究了以乙二胺和酰氯为原料制备乙撑酰胺的反,讨论了原料配比、反时间、反温度的影响。