使用适当的公式，确定沉降密度为 2500 𝑘g/𝑚𝑚3 且直径为 0.15 𝑚𝑚的砂粒所需的最小通道长度。渠道深度为2𝑚𝑚，水平

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answerhappygod
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使用适当的公式，确定沉降密度为 2500 𝑘g/𝑚𝑚3 且直径为 0.15 𝑚𝑚的砂粒所需的最小通道长度。渠道深度为2𝑚𝑚，水平

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使用适当的公式，确定沉降密度为 2500 𝑘g/𝑚𝑚3 且直径为 0.15
𝑚𝑚的砂粒所需的最小通道长度。渠道深度为2𝑚𝑚，水平流速为0.4𝑚𝑚/ 𝑠。做出必要的假设并画图
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