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1.The Fresnel number is used to calculate the intensity of light waves in a given medium.
菲涅尔数用于计算光波在给定介质中的强度。
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2.In optical engineering, the Fresnel number determines the efficiency of a lens system.
在光学工程中，菲涅尔数决定了透镜系统的效率。
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3. The Fresnel number is also used to predict the behavior of light waves in complex geometries.
菲涅尔数还用于预测光波在复杂几何结构中的行为。