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...
Application: Be fit for fluorescent flaw detection and fluorescence analysis.用途: 适用于荧光探伤和荧光分析.From 1942 onward I worked on the first anti - midget - submarine detection systems.从1942年往后,我研究了头一批 反 小型潜艇的探测系统.British office...
When his master's off traveling, Caleb stays with Pierre's parents.凯莱布在主人外出旅行时与皮埃尔的父母住在一起。The centre of attraction was Pierre Auguste Renoir's oil painting.最吸引人注意的是皮埃尔·奥古斯特·雷诺阿的油画。The yacht was skippered b...