This paper uses Senell sLaw and applys the way of Computer Modeling to draw the lighttrack in the media which have layer gradients of the index of refraction.
本文利用斯涅耳定理，采用计算机模拟的方式给出光在折射率呈层状梯度分布的介质中的传播路径。
2
It is significant to accelerate the construction of urban lighttrack transit system in such circumstance as urban public transit is becoming more and more tight.
论述了目前我国城市交通日趋紧张的情况下，加快城市轻轨交通系统建设的重要意义。
3
The light it gives off can then be used to track the protein in living cells.