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...
The whole hall is filled with joy and laughter -- there is only one who feels distressful.满堂欢笑,一人向隅.Under these distressful circumstances it was resolved to slow down the process of reconstruction.在这种令人痛苦的情况下,他们决定减慢重建的进程...
Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。To the north are the hot springs of Banyas de Sant Loan.北边是班亚斯德桑隆温泉。The bed-springs creaked.床垫的弹簧嘎吱作响。...
Methods: 30 cases of EM were administered medroxyprogesterone acetate after conservative surgery.方法: 对30例EM患者采用保守性手术方法治疗,术后口服醋酸甲羟孕酮作巩固治疗.OBJECTIVE To establish a rapid and exclusive method for the identification of medro...
Tack the cord around the cushion.用粗线沿着垫子边绷一圈。Inflate your life jacket by pulling sharply on the cord.猛拽绳扣使你的救生衣充气。A threefold cord is not quickly broken.三股拧成的绳子不易断....
They infuriate word sticklers by presenting a and leaving the reader to decide which is correct.它们会提出一堆解释让读者自己判断哪个是正确的,令人大为光火.We spend the time collating and presenting the information in a variety of chart forms...我们花费时...