pech

美

英

网络环氧氯丙烷；岩精；环氧氯丙烷低聚物

复数：pechs 过去分词：peched 现在分词：peching

英英

网络释义

n.	1. a short, fast, and forceful breath
v.	1. to pant or struggle for breath from exertion

例句

释义:

全部全部,环氧氯丙烷环氧氯丙烷,岩精岩精,环氧氯丙烷低聚物环氧氯丙烷低聚物

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难度:全部全部,简单简单,中等中等,难难

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1.

It is discovered through experiment that treating PECHs with different relative molecular mass should use different extraction solvents .

实验表明，处理不同相对分子质量的 PECH ，应采用不同的萃取溶剂。

2.

The hydroxy value of hydroxy -terminated polyepichlorohydrin (PECH) is a very important index which influences many properties of PECH.

端羟基聚环氧氯丙烷（PECH ）的羟值是影响其性质的重要指标。

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5.

Experimental Study on Sedimentation Water Quality Improvement in Pech-David Water Plant in Toulouse in France

改善法国图卢兹自来水厂沉淀池出水水质的实验研究