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A kind of polyetherester polyurethane was synthesized by polyetherester polyol, 4 , 4� � - diphenylmethane diisocyanate and 1, 4 - dihydroxybutane.是什么意思？

A kind of polyetherester polyurethane was synthesized by polyetherester polyol, 4 , 4� � - diphenylmethane diisocyanate and 1, 4 - dihydroxybutane.

制备了以自制聚醚酯多元醇 、 二异氰酸酯和1, 4- 丁二醇交联剂为原料合成的聚氨酯弹性体,研究了其力学性能.

相关词汇
kind of was synthesized by diphenylmethane diisocyanate and

kind

n. 〈古〉方式，方法，本质，天性，同类，某类；adj. 仁慈的，体贴的，友善的，好心的，温和，宽宏大量的；

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

synthesized

--

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

diphenylmethane

n. 二苯基甲烷；

diisocyanate

n. 二异氰酸盐（酯）；

and

conj. 和，与，而且，于是，然后，因此；
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