| 释义 |
PECH ˈpek COCA⁶²⁸⁹⁴BNC²³⁶²¹³⁺¹
基本例句
=Polyepichlorohydrin 聚表氯醇
Mechanical and dynamic mechanical properties and medium resistance of polyurethane based on hydroxy- tarminatad polyepichlorogydrin PECH were studied.
本文研究了由端羟基聚环氧氯丙烷 PECH制备的聚氨酯的力学性能，动态力学性能和耐介质性能。 cnki
Oligomers are often formed in the preparation of hydroxy- terminated polyepichlorohydrin PECH by cation ring- opening polymerization, so that quality of PECH is reduced.
阳离子开环聚合制备端羟基聚环氧氯丙烷 PECH时，往往伴随着一定量齐聚物的生成而使聚醚质量劣化。 chemyq
A short while later, a155- millimeter artillery piece at a forward operating base in the nearby Pech Valley began firing high- explosive rounds—24 in all.
过了一会，位于 Pech峡谷附近前方作战基地的155毫米火炮开始发射总计24发高爆炸药。 yeeyan
Branched glycidyl azide polymer B GAP was prepared from industrial polyepichlorohydrin PECH rubber as a starting material after reaction with sodium azide.
以工业氯醇橡胶为原料，通过与叠氮化钠反应制备出支化聚叠氮缩水甘油醚 B GAP。 dictall
Cellulosic fibres were treated with cationic modifying agents of PECH-amine and dyed with direct and reactive dyes without salts under neutral conditions.
纤维素纤维用聚环氧氯丙烷胺化物改性，并用直接染料、反应性染料中性、无盐染色。 chemyq
The results demonstrated that PECH-DMA could greatly enhance the removal efficiency of NTU and organic substances.
结果表明：助凝效果明显，浊度和有机物的去除效果都得到明显提高。 chemyq |