以焦油苊为原料,研制萘酰亚胺型荧光 增白剂.Naphthoylimine Fluorescent Whitening Agent ( FWA ) can be made from tar - acenaphthene.目的: 了解泰安市面粉中增白剂的添加情况.Objective : To understand the brightening agent adding condition of flour in Taian.去污力强, 对...
A touch whimsically, Nim speculated on whether he was falling in love.尼姆突然异想天开地想到他是否正陷入情网.The banks made too many risky loans which now can't be repaid, and they speculated in property whose value has now dropped.各银...