The selectivity of extractant is high and only Au, Pd , Hg ete. are extracted.该萃取剂选择性高,它仅萃取Au 、 Pd和Hg等几种元素.An extractant - screening method with a vapor - liquid equilibrium apparatus in the extractive distillation was i...
促胃液素、缩胆囊素和分泌素作用于相同的靶器官.Gastrin and cholecystokinin and secretin act on the same target organs.胃液内含有盐酸给胃蛋白酶提供酸溶液.Gastric juice contains hydrochloric acid to provide an acidic solution for pepsin.研究促胃液素的生物化学时代开始了.The bioch...
比蒂在被伊藤赶超之前，曾有几圈一直处于领先。Beattie led for several laps before he was overhauled by Itoh.他在转角处遇到芭比蒂, 并把她抓起来, 然后又把她放下.He met Babbitty round a corner, and snapped her up, and put her down again....
I withheld payment until they had fulfilled the contract.他们履行合同后,我才付款.Names of the dead and injured are being withheld pending notification of relatives.在正式通知亲属前，伤亡人员名单暂时保密。The court overturned that decision on the groun...
仲夏时节，每个城市都出奇地拥挤。In midsummer every town is impossibly crowded.仲夏酷暑尤其令人难熬.It is particularly difficult to bear up against the midsummer heat.老年人不胜忍受今年的仲夏酷暑.The old aged cannot bear up against the midsummer heat this year....
Bailey had always been an optimist , a sound Marxian optimist.贝利向来是个乐天派, 是个十足的马克思主义乐天派.Optimist: A man who gets treed by a lion But enjoys the scenery.乐观主义者: 被狮子逼上了树但仍然能欣赏风景的人.We are optimist and realist.我们是乐观主义者,又是现实主义者...
20世纪60年代建造的高低不一的公寓楼群正在逐渐破损坍塌。The high and low-rise apartment blocks built in the 1960s are crumbling.那笔钱甚至都不够赔偿破损费。Those figures might not even cover the cost of breakages.查看一下你的保险单，看其是否对搬运过程中的破损和毁坏赔偿。Check that your ins...
They learnt a lot from the initial market testing exercise.他们从最初的市场测试中了解了许多信息。He learnt tractor maintenance.他学会了拖拉机维修。He learnt his trade as a diver in the North Sea...他在北海学会了潜水员这一行的本事。She learnt to hurdle by leaping ove...