Applying the finite difference method, the numerical simulation of the surface charge density of a finite conductor stick is presented.

利用有限差分法对有限长导体棒电荷面密度进行了数值模拟。

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There is no obvious difference in quality combustion speed and emission intensity in the condition of different charge density by means of F test.

利用F检验确定了不同装药密度下，质量燃烧速度以及辐射强度等没有显著性差异。

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