The way of the sand funnel make use of separating mechanics of spiraling flow to breed out the sediment of the channel.

漏斗排沙方式利用螺旋流的分离机理来排除渠道泥沙； 平轴螺旋管流排沙是利用在管间加设导叶的方式产生螺旋流来输运泥沙。

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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。

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The research result shows that the basic conditions for tidal bore formation are the funnel-shaped Hangzhou Bay and sand bar rising.

研究结果表明，形成涌潮的基本条件是杭州湾平面喇叭口形态使潮差增大和沿程沙坎的抬升。

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The market cap of Petrobras has shed billions since she took over from what many Petrobras watchers say is nothing more than a policy instrument for Brasilia to funnel money to pet projects, rather than an actual oil company drilling below sand and rock salt in the Atlantic Ocean.

FORBES: Brazil Oil Giant Petrobras Blames Dollar For Collapse