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...
To reduce the sodium content, rinse canned or jarred sauerkraut before eating.为了降低钠的含量, 食用前冲洗灌装或坛装的腌菜.Delegates signed a treaty to reduce the armouries of conventional weapons in Europe.各代表签署了协议以减少欧洲的常规武器装备。His commitmen...
After six weeks, the researchers infected all the young turkeys with listeria.六周之后, 研究人员让所有的幼鸡都感染李斯特菌属.Cooking food completely destroys listeria.而将食物煮熟则能够完全消灭李氏杆菌.Obiective To establish a fast and accurate method to exam...
鲍尔斯先生能够让学生和音乐家都感到快乐。Mr Bowles could engender delight in students and musicians alike.他觉得自己注定会成为一名音乐家。He feels that he was destined to become a musician.他是一位才华横溢的音乐家。He was a brilliant musician....