With the decreasing of superficial gas velocity or increasing of solid mass flux, solid volume fraction at different axial positions increases simultaneously, while the particle velocity decreases.
随着表观气速的减小或颗粒循环量的增大，不同轴向位置的颗粒浓度都呈现增大的趋势，颗粒速度则降低。
With the decreasing of superficial gas velocity or increasing of solid mass flux, solid volume fraction at different axial positions increases simultaneously, while the particle velocity decreases.
随着表观气速的减小或颗粒循环量的增大，不同轴向位置的颗粒浓度都呈现增大的趋势，颗粒速度则降低。
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