1·Nitrogen is easily leached from soil because it is more easily dissolved.
氮由于较容易溶解，以是很容易就可以从土壤中过滤出来。
2·Only when the water has been leached almost to purity does growth cease.
只有当水已经被过滤的时候几乎对纯净做生长停止。
3·Catalysts were prepared by doping Cr, Zn and Coadditives on the surfaces of fully leached skeletal copper.
通过将铬，锌和钴添加剂掺杂于完全过滤的铜表面完成催化。