The precision of grading is relation of grade specific gravity and measure of ultimately discharge of products.

分选精不仅与原煤能否顺利地按比重分层，而且还与最终产品的排卸方式有关。

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The precision of grading is relation of grade specific gravity and measure of ultimately discharge of products.

分选精不仅与原煤能否顺利地按比重分层，而且还与最终产品的排卸方式有关。

youdao