They were good catalyst for synthesis of n - butyl cinnamate.它们是催化合成肉桂酸正丁酯的良好催化剂.Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosilicic acid as catalyst.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.M...
It is a difficult book to read, but it richly rewards the effort...这本书很难读懂，但是非常值得一读。Will rewards of some sort for winning a Battleground match be available?问:赢得战场会有什么奖励吗?The manager was strict and fair in meting out rewa...
Fresh fruits and vegetables are important and so is bran.新鲜的水果和蔬菜很重要，麦麸也是。You will be remunerated and so will your staff.你将得到酬劳，你的职员也如此。Demand for coal is down and so are prices.煤的需求下降了，煤价也相应下跌。...