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Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.

含硼岩系、镁容矿岩石是硼矿形础,区域变及混合岩化作用、构造活动是硼矿形必要条件。

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flocculation-floatation, flocculator, flocculator-settler, floccule, flocculence, flocculent, floccules, flocculi, flocculonodular, flocculonodule,

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3G, 401(K), a,

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