Blow - hole colostomies were closed on postoperative day 10, the investigators say.研究者报道小切口结肠造瘘口在术后10日闭合.Slowly he closed the book.他慢慢合上书。He closed his eyes and lay still, trying to purge his mind of anxiety.他闭上眼睛躺着不动，试图...
a leading supplier of computers in the UK英国一家主要电脑供应商They struck a deal with their paper supplier, getting two years of newsprint on credit.他们同纸张供应商达成协议，可赊购两年的新闻用纸。By changing its supplier, the company saved thousands of ...
Acetanilide and hexane diacid, potassium hydrogen phthalate could improve PVC crystallinity.乙酰苯胺 、 己二酸和邻苯二甲酸氢钾可以使PVC结晶度增大.Diacid has been got using diethylene glycol as decomposition agent of adduct.采用二甘醇作为加合物的分解剂,得到了二元酸...