英汉词典

1.METHODS The title compound was synthesized from 2-butene-1,4-diol, via esterification, epoxidation, amination, then amidation with tetraiodoterebenzoyl chloride.

方法以1，4-丁烯二醇为原料，经过酯化、环氧化、氨解开环，再与四碘对苯二甲酰氯反应合成目标产物。

2.The experiments show that in the new diol boric acid and the proportion of different circumstances, different forms of its response, the proportion of three different reaction there.

实验表明，在硼酸与新戊二醇的比例不同的情况下，其反应形式不同，有三种不同比例的反应存在。

3.The moisture cured polyurethane was synthesized with mixing polyether diol, toluene diisocyanate (TDI) as main raw materials, epoxy resin and hydroxy acrylic resin as modifiers.

以混合聚醚多元醇、甲苯二异氰酸酯为主要原料，环氧树脂、羟基丙烯酸树脂为改性剂合成了湿固化聚氨酯涂饰剂。

4.In the experiment, di-isocyanate, polyether diol and a hydrophilic chain-extender were used to synthesize aqueous urethane.

实验采用二异氰酸酯与聚醚二元醇、亲水扩链剂反应合成水性聚氨酯。

5.Toxic matagenic and carcinogenic PAH diol epoxides can be derived from PAHS, which are responsible for most cases of lung cancer.

有毒的matagenic和致癌物质PAH二醇环氧化合物均来源于多环芳香烃(PAH)，它是导致大多数肺癌的罪魁祸首。

6."These results are significant because PAH diol epoxides react readily with DNA, induce mutations, and are considered to be ultimate carcinogens of multiple PAH in cigarette smoke, " the study said.

研究认为：“这项结果相当重要，因为多环芳香环氧二醇（PAH diol epoxides）易与DNA反应，引发突变，所以被认为是吸烟产生的众多环芳香烃中最严重的致癌物质。”