而在粒度一定的情况下，床层高度的变化不影响临界流化速度值。
Meanwhile, the change of the bed height does not affect the critical air velocity when the particle size of arenaceous quartz is fixed.
而在粒度一定的情况下，床层高度的变化不影响临界流化速度值。
Meanwhile, the change of the bed height does not affect the critical air velocity when the particle size of arenaceous quartz is fixed.
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