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 think Birmingham City are prime candidates for relegation next season.我认为下个赛季伯明翰城队最有可能降级。Relegation to the Third Division would prove catastrophic.降到丙级将是灾难性的。Liaoning team lost this game, is still deeply avoid relegati...
Don't sadden your friends and gladden your enemies.勿使亲者痛仇者快。You can sigh away half your youth if you choose to allow failed relationship to sadden you.如果你陷于失败的伤感中,你就会使前半生在叹息中度过.Do not sadden your friends and gladden...