purification process modification
purification process modification
净化工艺改造
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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This product is made from the natural Ca-bentonite after a process of purification, modification, long-chain organic cation covers and so on.
本产品以天然优质钙基膨润土为原料，经提纯、改型、长链有机阳离子覆盖等过程精制而成。
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