它们是催化合成肉桂酸正丁酯的良好催化剂.They were good catalyst for synthesis of n - butyl cinnamate.计算并绘制了H_2O及反式肉桂酸的MEP图.MEP of H _ 2 O and trans - cinnamic acid were calculated, and themaps were drawn.以钨硅杂多酸为催化剂,通过肉桂酸和正丁醇反应合成肉桂酸正丁酯.Butyl...
Elgar supplied his works with precise indications of tempo.埃尔加给自己的作品标上了精确的节奏标记。Elgar received many honors and much acclaim and yet he often considered himself a failure.人们对埃尔加赞誉有加，但他却常觉得自己是个失败者。Elgar and " British Music ...
J: Lovely Paris kinglet ( prince ), may I go to the washroom?朱丽叶: 可爱的 帕里斯 小王子, 请问你是否愿意让我去个厕所?European kinglet with a black bordered yellow crown patch.欧洲戴菊鸟,黄色的头冠上有黑边点缀.American kinglet with a notable song and in the mal...