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Aluminum product using raw bauxite of bayerite was imported from overseas in our country from last century, and the scale of production was continually expanded in recent years.
因此我国从上世纪末开始进口三水铝石型铝土矿生产氧化铝，近几年来，利用进口三水铝石型铝土矿生产氧化铝的规模日益扩大。
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