平面边界 meaning in English

plane boundary

On the one hand , the processed gpt profiles can be used to delineate the underground artificial concrete base of building fields and provides important data for the plan of groundsill processing and location of pipe piles ; on the other hand , they can not only display the boundaries of the civil air defense accurately , but also reflect its internal structural characters
对探地雷达剖面的处理分析，圈定了测区内多块建筑场地地下混凝土结构的平面分布范围，为建设工程的地基处理设计和桩基施工定位提供重要资料；探地雷达剖面不仅能精确显示人防工程的平面边界位置，而且还能反映人防工程的内部结构特点。