根据理论分析和现有试验成果相结合的方法，研究了排沙漏斗中二次流在排沙中的重要作用。
Combining the theoretical analysis and the existing experimental achievement, the important role of secondary flow for sediment ejection in sand funnel is researched for the first time.
根据理论分析和现有试验成果相结合的方法，研究了排沙漏斗中二次流在排沙中的重要作用。
Combining the theoretical analysis and the existing experimental achievement, the important role of secondary flow for sediment ejection in sand funnel is researched for the first time.
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