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...
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....
They would speak of earthlight just as we speak of moonlight.他们也会像我们谈论地球之光.They would speak of earthlight just as we speak of moon light.他们会说这是地球光,就像我们说是月光一样....