通过该方程与水沙条件的分析，进一步验证了散粒体泥沙起动的流速公式。

Based on the analysis of the equation and condition, the starting current velocity formula about the pill sediment is further proved.

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借助于光纤在球面上的折射公式及光线传输方程，分析了这种新型单模光纤端的光学传递性质。

For this new type fiber end, the ray refraction formula at a spherical surface and the ray trace equation are used to analyze ray transformation properties.

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当用积分方程法分析桩和其它地学工程问题时，这些公式可以用作一近似的基本解。

These formulae can be used as an approximate basic solution when the integral equation method is employed for the analysis of piles and other geotechnical engineering problems.

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