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员,从来不考虑自己有什。

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

研究了以乙二胺和硬脂酰氯为原料制备乙撑双硬脂酰胺的反应,讨论了原料配比、反应时间、反应温的影响。

Some experiments were did on herbicide activity, and had found that activities of some compounds was good,especially 3,6-bis-benzyl-s-tetrazine.

对其中部分化合物进行了生物活性实验,发现有些化合物显示了较好的活性,同时发现烷的引入可以提高除草活性。

Using ortho-bis(porpargyl alcohol) derivatives as starting materials, we employed sulfenyl or sulfinyl chloride under base condition to generate bis-allene intermediates.

所采用的合成方式以邻位二丙炔醇为起始物，在碱性环境中与次磺氯或亚磺氯作用生成丙二烯后，再经环化反应得多并苯化合物。

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

本文对醛和二甲二氯硅烷反应合成二甲硅双烯醇醚进行了研究。

Two kinds of bis-hydroxyalkyl or bis-methyl formylate subtituted bis-ethylenedithio-tetrathiafulvalenes (BEDT-TTF) and their charger-transfer complexes (CT-complexes ) with TCNQ were synthesized.

合成了带双羟烷及双甲酸甲酯的两种双二硫亚乙四硫富瓦烯(BEDT-TTF)的衍生物及其它们与TCNQ的CT-络合物。