sub-satellite track

A Feasibility Study of Sub-altitude Training for Short-distance Events in Track Cycling

论场地自行车短距离项目亚高原训练的可行性

Study on vertical load transmission through track structure is always one of hot and difficult spots in railway engineering, it is also one question that must be solved for design of track structure and sub-grade, much study have been made by home and overseas researchers.

轨道结构垂向力的研究一直是铁路工程研究的热点和难点之一，也是对轨道结构和路基进行设计必须要解决的问题，国内外学者对此进行了大量的研究。

The great circle arc is used to approximate the sub-satellite track within the visibility window.

算法利用大圆弧近似可视窗口内的星下点轨迹获得可见性结果。

This product is applicable to city express way: main trunk road, sub-trunk road, spur track, roads of factory, school and park, various residence roads and courtyard etc.

本产品价格适用于城市快速路：主干线、次干线、支路、工厂、学校、公园、住宅小区、庭院等道路照明。