The formula of numerical computing is presented with discretion for Fresnel diffraction and phase numerical reconstruction of wave front.

从光的菲涅耳衍射、波前相位重构入手，对连续信号进行了离散化处理，给出了数值计算公式。

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This paper analyzes the influence of wave raising height on slope in reservoir region by plant zone in front of embankment, pavement structure and common raising height formula.

分析了堤前植物带、护面结构和常用爬高公式对库区波浪爬高的影响，结果表明，堤前种植植物带和增大护面结构空隙率能有效地减小波浪爬高。

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If can be seen from this formula that there is an optimized thickness for front screen, at this thickness the light output is largest.

由该式可知，就光强输出而言，前屏具有一个最佳厚度，在此厚度下光强输出最大。

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