研究了用酸性乙腈硫酸铜体系从辉铜矿中提取铜.Leaching of copper from chalcocite with acidic acetonitrilecopper sulphate system was studied.除自然铜和孔雀石之外, 还有黄铜矿 、 斑铜矿 、 辉铜矿 、 铜蓝和黝铜矿等.In addition to the natural copper and malachite, there are chalc...
The most desirable properties necessarily command astonishingly high prices.最值得拥有的财产必然要价不菲。He was wearing, astonishingly, a frilly pink apron over shirt and trousers.他穿得很奇怪，衬衫和裤子外面套着件镶褶边的粉红围裙。During the Seventies, Rundgr...
Church bells tolled and black flags fluttered.教堂丧钟敲响，黑色的旗帜飘动。a peal of bells钟声大作Church bells pealed at the stroke of midnight.教堂大钟在午夜敲响。A peal of church bells rang out in the distance.远处响起了一阵教堂的钟声。The church bells are ri...
New recruits have been undergoing training in recent weeks.最近几周，新兵正在接受训练。This powerful drug is used to tranquilize patients undergoing surgery.这种强效药剂被用来麻醉手术病人。The runway of this airport is undergoing expansion to accommo...
Watson has a wonderful voice, with thrillingly clear top notes.沃森的嗓音美妙，高音嘹亮动听。Francis Watson was far from being merely a furniture expert.弗朗西斯·沃森远远不止是个家具行家。Watson had made a thorough hash of it.沃森把这事儿弄得一团糟。...
It can't fill in the indivedual study to Wu Mingshi's opus.然而,这种对无名氏创作的群落性划分,并不能替代对其创作个体独特性的研究....Schubert's B flat Piano Trio (Opus 99).舒伯特降 B 调钢琴三重奏(第 99 号作品)I am a convinced reader of the Opus Magnum of...