The diisobutyl dicarboxylate was prepared by using acid and isobutanol as material and acid as catalyst.以二羧酸和异丁醇为原料,用硫酸作催化剂,合成二羧酸二异丁酯.Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosili...
Acid rain is not straightforwardly attributable to the burning of coal.酸雨并非简单地由烧煤造成。Nor is acid rain always, and universally, a bad thing.酸雨也并非在任何情况下都是坏事。This comedy of contemporary manners is told with compassion and ac...
Dave, the pianist, played it over a couple of times.演奏钢琴的戴夫将这支曲子反复弹了两三遍。She was a pupil of Franz Liszt, the great Hungarian pianist.她是伟大的匈牙利钢琴家弗朗兹·李斯特的学生.Our pianist had fallen ill, and then, at the eleventh hour, when w...
The house was set amid dense trees and surrounded by an electrified fence.那座房子坐落于茂密的树林中，四周布有带电围栏。The wonderful performance electrified audiences.精彩的表演令观众兴奋不已.The national railway system has nearly all been electrified.全国...