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.The diisobutyl dicarboxylate was prepared by using acid and isobutanol as material and acid as catalyst.以冰醋酸、异丁醇为原料,硫酸高铈为催化剂合成乙酸异丁酯.A method for synthesis of isobutyl acetate based on ceric ...
The truck hulked up suddenly crest of the hill.卡车在小山顶上突然像个庞然大物似地出现了.Suddenly a big ship hulked up out of the mist.突然一艘巨船破雾而出.Suddenly a train hulked up into station.突然,火车庞然大物般地驶进了火车站....
这种补药对治疗你的忧郁症十分有效.This tonic will work miracles for your depression.我想你应该重新开始吃那种补药.I think you ought to start taking that tonic again.药剂师对这种新补药作了化验分析,发现有毒.The chemist analyzed the new tonic and found it contained poison....
Agassi hit a backhand.阿加西反手一击。He responded to my volley with a backhand, ie in tennis.他反手一击把我截击的空中球打了回来(网球中).Her backhand, however, had definitely improved.不过她的反手球的确有了进步....
...the notional value of state assets.国有资产的名义价值A notional figure of cost helps in determining production costs.有关成本的名义数据有助于确定生产成本.My calculation is based on notional figures, since the actual figures are not yet availabl...