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本文以石英砂为试验物料，研究了不同底流区域加喷冲洗水对圆柱形族流器分级行为的影响。此外，笔者还分析了加喷冲洗水的作用机理。
In this paper, quartz sand as a test material to study the effects of different underflow areas plus spray flushing water on the grading behavior of cylindrical flow. In addition, I also analyzed the mechanism of adding flushing water.