适合学校实际平面解析几何课堂教学的课件资源匮乏。
The teaching of plane analytical geometry is short of the suitable courseware resources in practice.
给出了一种基于DEM数据的雷达实际平面探测威力实用算法，实现了雷达在任意高度层的实际平面探测威力的自动仿真生成。
An applied arithmetic of radar practical planar detection power based on DEM is presented, which can simulate radar practical planar detection power at any altitude.
bytes 参数是平面文件的实际内容。
The bytes parameter is the actual contents of the flat file.
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