Under the optimum condition the yield of isopropyl cyclopropane carboxylate is 92 %.在最佳反应条件下,环丙烷羧酸异丙酯的产率达92%.Isopropyl p - hydroxybenzoate was synthesized with toluene - p - sulfonic acid as catalyst.以对 甲苯 磺酸为催化剂合成了尼泊金异丙...
Cologne is not so very far down-river from Mainz.科隆在离美因茨并不遥远的下游方向。This led Zagreb's twin town, Mainz, to donate £70,000-worth of high-quality equipment.这使得萨格勒布的友好城市美因茨捐赠了价值7万英镑的高品质装备。In 1517 Albert of Brandenberg, a...
The vigilantes dragged the men out of the vehicles.治安人员硬把那些人拉下车。The vigilantes dragged the men out.治安员们把那些人揪了出来。The " vigilantes " in the market are supposedly alert to any inflationary threat.按理,市场中的 “ 积极分子 ” 会提防任何通胀威胁....
The movie was a letdown.那电影真令人失望.He found himself completely unable to suppress a sense of disappointment, of letdown.他感到自己有一种完全无法抑制的受挫和失望的感觉.It's really a letdown to let Tom join us.让汤姆加入我们真是一件扫兴的事情....
除了两个人在机房值班外,其他人都在睡觉。Apart from two men on watch in the engine-room, everyone was asleep.这名司机被安排在星期日值班。The driver was rostered for Sunday.值班的护士担心病人的病情会恶化.The nurse on duty was fearful that the patient should get worse....