N, N - diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst. 以苯胺和溴乙烷为原料,用四乙基氢氧化铵作相转移催化剂,在常压下合成N, N二乙基苯胺.
Dr Ryan travelled the world gathering material for his book.瑞安博士周游世界为他的书搜集资料。Mr Ryan is confident of success.瑞安先生坚信一定会成功。Ryan took it as a snub.瑞安觉得这是一种怠慢。...
This guy won a million - dollar jackpot on a game show.这家伙在一场比赛中赢得了一百万美元的奖金.A nurse won the £5 million jackpot.一个护士赢得了500万英镑的头奖。The estimated jackpot of Dual-colored Ball is 360 million yuan RMB.双色球奖池估计有3.6亿元人民币。to win t...
Jun checkmated the rival after the final deliberate consideration.经过最后的深思熟虑,谢军将死于对手.Xie Jun checkmated the rival after the final deliberate consideration.经过最后的深思熟虑,谢军将死于对手.Jun: Great! Order me a fresh pina colada, follow...
Pay £4.80 for larger prints and they throw in a free photo album...付 4.8 英镑冲印更大尺寸的照片就会获赠一本相册。In tropical areas, larger plots have proved more useful due to greater heterogeneity of the forest.在热带地区, 由于森林的异质性较大,已证实大一些的样地更...