研究通过氯气浸出 - 净化 - 不溶阳极电积法生产电镍的工艺过程.The process of chlorine leaching - purification - electrowinning for nickel extractioncopper residue is investigated.采用浸出 - 萃取 - 电积工艺,可生产高质量的1号阴极铜.The high quality No.1 negative pole copp...
他们俩在婴儿床上酣睡着。They were both fast asleep in their cots.他肯定是从婴儿床里爬出来的。He must have climbed out of his cot.要在婴儿床里放一些玩具，以便他醒得早时可以自己玩。Put a selection of baby toys in his cot to amuse him if he wakes early....
她开始用钢琴演奏那首民歌.She struck up a folk melody on the piano.应观众再唱一曲的要求, 他清唱了一首民歌.For an encore, he sang an unaccompanied folk song.她在哼一首我以前从未听过的民歌.She is humming a folk song that I never heard before....
The introduction attempts to yoke the pieces together.导言部分试图将各部分硬拼凑在一起。the yoke of imperialism帝国主义的枷锁Every farmer knows how to yoke the oxen together.每个家民都知道怎样把牛拴在一起....