zone melting crystallization
... 区域气候学 regional climatology 区域熔融结晶 zone melting crystallization 区域提纯 zone purification ...
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为提高防老剂BHT的纯度，采用重结晶和区域熔融法对工业品防老剂BHT进行提纯。
In order to improve the purity of industrial product, Antioxidant BHT was purified by the methods of recrystalize and zone melting.
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