1. The point of intersection of the three altitudes of a triangle. 垂心三角形的''。'三边'。''垂线的交点。
2. Contact angle: The angle made by a drop of liquid with a solid at the point of intersection . 接触角:一滴液体和固体接触时所造成的角度。
3. In this paper, the tracing and the calculation method of the point of intersection of isopleth and net line are developed. 本文讨论了等值线与网格线交点的追踪和计算方法.用此方法画出等值线图,处理方便,迅速,准确,占用内存少。