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分步结晶法是利用合金凝固的偏析现象而进行的铝的精炼方法,其原理很久以前就知道,但作为工业化的应用约是10年前的事情。法国彼施涅公司首先采用该技术,目前又进行
The fractional crystallization method is an aluminum refining method that utilizes the segregation phenomenon of alloy solidification. The principle has been known for a long time, but the application as industrialization is about 10 years ago. France peishie company first adopted the technology, currently carried out