对试验所得的固体颗粒停留时间分布曲线的分析明显表明床内存在着由于流体动力特性和几何结构引起的颗粒返混。
The experiments show that the solid reflux due to hydrodynamic and geometrical reasons are clearly observed in the analysis of the RTD (residence time distribution) curves.
固体颗粒在床层迅速混合，导致颗粒在反应器中停留时间不均。
The rapid mixing of solids in the bed leads to nonuniform residence times of solids in the reactor.
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