In addition, according to experimental results, slab method in plastic mechanics and material hardening theory, a new formula for hole flanging force is concluded.

另外，根据试验结果，并利用塑性力学中的主应力法和材料硬化理论，推导了一个计算圆孔翻边力的新公式。

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We propose and optimize the antireflection coating composed of a row of tapered dielectric waveguides for two-dimensional air hole-type photonic crystal negative refraction slab lens.

提出并优化了由单排渐变介质波导构成的二维空气孔型光子晶体负折射平板透镜表面的减反层，改善了成像质量。

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After the test road, summarizes the slab grouting technique for composite pavement, determines the grouting pressure, hole arrangement, hole spacing and other key indexes.

通过试验路的实践，总结了适用于复合式路面的压浆工艺，确定了压浆压力、布孔方式、孔距等关键参数。

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