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...
He saw a boy in fetters in the dungeons.他在地牢里看见一个戴着脚镣的男孩。...the fetters of social convention.社会习俗的约束No man loves his fetters,be they made of gold.即使是金子做的镣铐,也没人喜欢。No man loves his fetters, be they made of gold.[谚]金铸的脚镣, 也...
莎拉来了，她急着要见你。Sarah's here and raring to meet you.莎拉有着典型英国人的白皙皮肤。Sarah has typically British fair skin.莎拉终于见到了这个传说中的男人,并且立刻为之倾倒.Sarah finally meets this legendary man and promptly falls for him....
它看上去不像是最可信赖的动物。He does not look the most reliable of animals.大家一致公认他是个可信赖的人.It is generally admitted that he is a trustworthy person.他已表明,在紧要关头他是可以信赖的.He had proved that he could be relied on in a crisis....