1·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。
2·The experimental results indicate that the critical air velocity increases with the increase of the particle size of arenaceous quartz.
结果表明：临界流化速度随着粒度的增大而增大；