However, installing a porous dividing wall will increase the critical value of pinning, and the further it is from the upstream face, the higher the critical value of pinning will be.

• 与无内构件的移动床相比，在床层内设置整流子降低了颗粒贴壁的临界压降，整流子放置的横向位置距上流面越远其值越低，而整流子的型式和叶片长度对此几乎无影响；