The experimental results show that the radial profiles of local slip velocity are non-uniform :flat in the central region and steep in the region near the wall.

实验结果表明，提高颗粒循环速率，在任一径向位置的气固滑落速度均增加；

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The experimental results show that the radial profiles of local slip velocity are non-uniform :flat in the central region and steep in the region near the wall.

实验结果表明，提高颗粒循环速率，在任一径向位置的气固滑落速度均增加；

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