折射定律

Based on the stress optics law and the theory of elasticity thermal stress, the relation between optic path difference of double refraction and main stress difference is derived.

基于应力光学定律和弹性热应力理论，导出双折射的光程差与主应力差之间的关系。

From the theory of relativity,this paper useing Lorenty transformation of wave vector ,law of reflection and law of refraction in a surface of moving mediun is discussed.

从狭义相对论的波矢量间的洛仑兹变换出发，推导出光波在运动媒质表面的反射定律和折射定

Based on the dynamic stress optic law and by making use of the stress values from strain measurements and BEM calculation, the history of birefringent fringe orders are calculated, and compared with the result of dynamic orthotropic photoelasticity.

把动态应变测量推算出的应力分量以及时域边界元计算出的应力分量分别代入正交异性动态应力－光性定律，得到随时间变化的双折射条纹级数历程，将其与正交异性动态光弹性实验的结果进行比较。

Snell's law reveals the propagation and refraction properties of the light when it passes through the interface composed by two media with different optical constants.

Snell定律揭示了光在穿越不同介质界面时的传播和折射规律，这是现代物理光学的重要基础。

A general formula for three dimensional refraction of progressive gravity water waves has been derived using the conservation of waves, which has a form the same as that derived using Fermat's principle in optics. For the case of gentle sloping plane beach the formula can be degenerated into the famous Snell's law.

三度空间中前进波浪的折射现象，已依波浪守衡性的本质简明地导述出其主控的通式，且与由较繁冗的光学之Fermat原则所得者完全一致；而最简单的均匀缓坡度底床的特例情况则退化成Snell定律者。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。