因此，净化的天然气田附近，和其他晶石净化。
Therefore, to purify the vicinity of the gas field, and purification of other spar .
天然重晶石由于产地的不同，矿的品位不同。
Due to the different origin of natural barite so it is grade different.
采用新型湿法研磨技术，以天然重晶石为原料成功制备了纳米重晶石粉体。
Nano barite powder has been successfully prepared by new grinding technology, using nature barite as material.
天然镁砂尖晶石极少发现，工业上应用的铝镁尖晶石全部都是人工合成的。
Natural magnesia spinel rarely found that magnesium aluminum spinel in industrial application are all synthetic.
天然镁砂尖晶石极少发现，工业上应用的铝镁尖晶石全部都是人工合成的。
Natural magnesia spinel rarely found that magnesium aluminum spinel in industrial application are all synthetic.
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