...the high-speed rail link between London and the Channel Tunnel...伦敦与海峡隧道间的高速铁路连接线Britain's three-day event team has high hopes of winning the Olympic gold medal...英国队有很大希望赢得奥运会马术三日赛的金牌。I had high hopes that Derek...
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...