1、The point of intersection of the three altitudes of a triangle
垂心三角形的三邊垂線的交點

2、Searching point of intersection between curves is an important problem in computer graphics.
求交是計算機圖形學(xué)的重要問題，而直線求交又是復(fù)雜曲線求交的基礎(chǔ)。

3、The point of intersection of the three altitudes of a triangle.
垂心三角形的三邊垂線的交點

4、The other point of intersection of equator and the ecliptic is called the Autumnal Equinox.
赤道和黃道的另一個相交點叫作秋分點。

5、The point of intersection of arcs or curves, such as the inner points of a trefoil.
線交叉集合之點或一個形體中與底層相對的點。