This platform can simulate the ray tracing for a fixed frequency or sweeping frequencies, also can calculate the group path and the covered region of rays.
该平台可实现定频或扫频射线轨迹演示，计算各射线群路径，覆盖区域等功能。
The frequency of the mutation of G in the healthy group of Han nationality in Shanghai region was higher than that in Britain.
与英国人相比，上海地区汉族人群G等位基因频率较高。
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