一份在全麦薄皮比萨上加了菲达奶酪的夏威夷比萨，再加一份配菜沙拉，就是一餐健康的饮食。

In this case, ordering a Hawaiian pizza with feta cheese on a whole wheat thin crust, with a side salad, could make a healthy meal.

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Yabe博士的诀窍是使用比较小的菲涅尔透镜——棱镜同心环构成的透明较薄的平面透镜。

Dr Yabe's trick is to use relatively small Fresnel lenses-transparent and relatively thin planar lenses made up of concentric rings of prisms.

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利用菲涅耳基尔霍夫衍射积分和非线性近轴波动方程，在远场近似及光学薄近似条件下，得出了位相调制产生“热像”出现的位置及强度满足的解析关系。

According to the Fresnel-Kirchhoff diffraction integral and nonlinear paraxial wave equation, we derive the functional relationship of the intensity of hot image and its location.

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