An analysis is made about Descartes rays of transparent round-section fibers-a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.
摘要分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象—笛卡尔线现象。
An analysis is made about Descartes rays of transparent round-section fibers-a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.
分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象？笛卡尔线现象。
Standing wave is parasitic effect of exposure, generated by multi reflection and interference of rays vertically incident upon parallel medium layers.
驻波是曝光中的寄生效应，是光线垂直入射到不同的平行平面介质层之间，经多次反射并干涉形成的。
Our non-chemical sunscreen, sunscreen stick formula with Nano UV filter for harmful ultraviolet rays scattering and reflection, provide highly effective broad-spectrum UVA-UVB sun protection.
我们的无化学防晒成分的防晒棒采用纳米紫外线过滤配方，用于散射和反射有害紫外射线，提供高效的UVA-UVB广谱防晒保护。
The method comprises the following steps: after parallel rays project to a target surface area element, acquiring a path parameter of each ray from incidence to reflection;
所述方法包括：当平行射线投向目标面元后，获取每条射线从入 射到反射的路径参数；
The effective incident rays entered the eye from different parts of the reflection disc according to their incident angles.
有效投射光线依照其投射角，由光斑的不同部位进入眼中。
The effective incident rays entered the eye from different parts of the reflection disc according to their incident angles.
有效投射光线依照其投射角，由光斑的不同部位进入眼中。
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