Zn is a necessary element for biology.
锌是生物的必需元素之一。
Propineb is a protective fungicide and rich in free Zn.
丙森锌是一种保护性的杀菌剂，富含作物可利用的锌。
Trace element Zn is very important for the children's growth.
微量元素锌在儿童生长发育过程中有极其重要的意义。
Separation of Cu, Zn and sulphur has been a difficult problem for a long time.
铜锌硫多金属矿石分离历来是选矿界的难题。
Many Pb-Zn-Ag deposits are found in the middle north margin of North China Block.
河北丰宁营房铅锌银矿床产于一近南北向的中型韧性剪切带中。
Many Pb-Zn-Ag deposits are found in the middle north margin of North China Block.
河北丰宁营房铅锌银矿床产于一近南北向的中型韧性剪切带中。
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