解释为什么钡能形成过氧化物而铍则不能。Explain why barium forms peroxide but beryllium does not.然而铍的毒性限制了它的作用.However the toxic properties of beryllium limit its application.但如果用铝包覆铍,则可避免加工过程中及储存期间的中毒问题.Toxicity problem in manufacturing and...
目的: 探讨葛根异黄酮分散片的制备工艺.Objective : To discuss the dispersible tablets preparation of radix puerariae isoflavone.以水为主要溶媒,提取脱脂大豆粉中的大豆异黄酮.Soybean isoflavones were extracted by water from defatted soybean flour.目前,大豆异黄酮产品的规格有 1...
I'll try to be as inconspicuous as possible...我会尽量不惹人注意。He was sidling into the bar, obviously trying to be inconspicuous.他悄悄地走进酒吧，显然不想引起注意。an inconspicuous act of bravery不引人注意的英勇行为I'll try to be as inconspicuo...
Suddenly he heard a rustle in the peony pavilion and someone sighing deeply.他忽闻有人在牡丹亭畔长吁短叹.What are you sighing about?你为什么唉声叹气?What are you sighing about? Is something wrong?你叹息什么? 出什么事了?Sighing for sorrow can be harmful...