Based on Fermat Theory,this paper sets up the differential equation of the ray track in the atmosphere,and explains the mirage phenomenon.
利用费马原理建立了大气中光线轨迹的微分方程 ,并解释了“空中绿洲”这一光学现象。
The author tries to dissertate the problems of healthy high-rise residential building through studying sky courts.
健康住宅是一项很广博的课题,笔者选择空中绿化这一角度来论述高层健康住宅问题。
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