Reactor embodiments for the fluorination reactions are also disclosed.还公开了氟化反应反应器的具体实施方式.Low cost 3, 4 - difluoro nitrobenzene was prepared from 2, 4 - dinitrochlorobenzene by two - step fluorination.二硝基氯苯经二步氟化反应,制得低成本3,...
在浓缩过程中大部份氟蒸出.A large proportion of the fluorine is vaporized during the concentration process.因此, 大多数液浮陀螺充以氟碳化合物.For this reason, most floated gyros are filled with the fluorocarbons.它对氟离子的选择性比其它普通阴离子高几千倍.It'shows a...
Objective To explore the effecting factors of liver cancer recurrence after hepatectomy.目的研究影响肝癌术后复发的集团因素及其中的主要因素.Objective To explore the safety and invasion of laparoscopic hepatectomy ( LH ).目的探讨腹腔镜肝切除 ( LH ) 的安全性和微创性...
She is warm-hearted and kind to everyone and everything.她对每个人每件事都很热心、宽厚。He was a warm-hearted friend and genial host.他是个热心的朋友，也是友善待客的主人。He was strong - willed and warm - hearted, and he adored her.他意志坚强,心地善良, 对她爱恋至深....