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....
Newcastle went out of the competition, losing 2-1 on aggregate.纽卡斯尔队以1比2的总比分被淘汰出局。United won 5-3 on aggregate.联队以总比分5比3胜出。The football team had a low goal aggregate last season.这支足球队上个赛季的进球总数很少....