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,...
The isocyanates can be obtained by the fluorination of nitrogenous cylic or acyclic molecules.异氰酸酯可由含氯的环(或非环)状分子氟化而得.A heavy - duty magnetic stirrer , such as Cole - Parmer model is needed during the fluorination.在氟化过程中需...
他把这起事件向沙特外长作了说明。He put the case to the Saudi Foreign Minister.他经历的恐怖事件在他脑海中刻下了深深的，或许是难以磨灭的印记。The horrors he experienced are imprinted, perhaps indelibly, in his brain.一位发言人坚称这两起事件“绝无关联”。A spokesman insisted the two event...
He'll soon realize that it's better to play a part in a big show than try to run a one - man show .他马上就会看到演 独角戏 不如搭班子好.Fruit maturity may play a part in phenotypic characterization.果实成熟期使这种表现型特征可能明显地起一些作用.Elsew...
At the highest executive levels earnings and performance aren't always correlated.在最高管理层，收入与工作表现并不总是相关的。The water level in Lake Taihu has reached record levels.太湖水位达到了历史最高值。They have purged thousands from the upper ...