In the separation process the fine coal in fluidized bed will be continuously accumulated, thus inevitably reducing the density of the bed.
在分选过程中，流化床内的粉煤将不断积聚，从而导致床层密度的降低。
In the separation process the fine coal in fluidized bed will be continuously accumulated, thus inevitably reducing the density of the bed.
在分选过程中，流化床内的粉煤将不断积聚，从而导致床层密度的降低。
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