这是因为氯磺化反应存在位阻效应的缘故.This was due to hindered reaction in the chlorosulfonation.气体有效浓度增加,氯磺化反应速率增加,氯气和二氧化硫的体积配比以1∶1为佳.The rate of chlorosulfonation increased with increasing concentration of the gaseous mixture.而氯磺化聚乙烯产品具有...
"I'm afraid he's ill." — "I'm sorry to hear that."“恐怕他生病了。”——“真是遗憾。”She could hear his ragged breathing, as if he had been running.她能听到他不均匀的呼吸声，似乎他是跑着过来的。"I think I hear the telephone ringing."—"Okay, I ca...
Many women achievers appear to pose a threat to their male colleagues...许多事业有成的女性似乎对她们的男同事构成了一种威胁。The skills and logistics of getting such a big show on the road pose enormous practical problems.搞如此大型的巡演，无论是技术上还是物流上都面临着巨...
Choose a soft, medium or firm mattress to suit their individual needs.针对他们各人不同的需要挑选柔软、软硬适中或者坚硬的床垫。She sighed, then continued in a soft, calm voice.她叹了口气，然后继续用温柔、平静的声音说下去。I think more customers probably prefer a soft sell...
The medieval nominalists denied the reality of universals.中世纪唯名论者否定一般概念的实在性.Croft , W . 1990 Typology and Universals . Cambridge : Cambridge University Press.蒋绍愚 《近代汉语研究概况》,北京大学出版社.The Extended Standard Theory focuses di...
Who designed the arch bridge with granite - faced pylons at either end?谁设计在拱桥两端镶有花岗岩的塔门?The paper introduces overall arrangement, structure, calculation of main cable and pylons of cable supporting crane.主要介绍缆索吊机总体布置 、 结...