我们已经忘了，水可以洗濯洁净，火可以精炼提纯，大地是每个人的母亲。
We have forgotten that Water can cleanse, and Fire purify, and that the Earth is mother to us all.
论述了粗钯精炼提纯的方法，利用本方法可获得品位为99.99%的海绵钯。
The paper expounds the way of refining raw palladium. Through the way, 99.99 % spongy palladium can be obtained.
本文介绍了溶剂萃取、离子交换、电解精炼和区域熔炼等冶金提纯方法在高纯铁制备过程中的应用。
The methods of preparing high purity iron include solvent extraction, ion exchange, electrolytic refining, zone melting, and so on.
应用推荐