1) orthocentric
垂心的
2) vertical centerline
垂直的中心线
3) orthocenter [英]['ɔ:θə,sentə] [美]['ɔrθə,sɛntɚ]
垂心
1.
We also prove that the altitudes of a inscribed polygon of a circle are
concurrent, then got a definition of orthocenter of a inscribed polygon of a
circle.
利用递归方法给出任意多边形的中线与顶点重心的定义,再给出圆内接多边形高线的定义,然后证明圆内接多边形的高线
(或所在直线)共点,由此得到圆内接多边形垂心的定义,最后给出多边形的顶点重心与圆内接多边形的垂心的若干性质。
2.
This paper explores into the distance formula between median
point,orthocenter,circumcenter and inner point of triangle by means of two
related formulas of vector methods.
应用两个向量法相关公式探讨了三角形重心、垂心、外心以及内心之间的距离公式。
3.
The inequality of Erd s-Mordell is refined in the orthocenter of non-obtuse
triangle,As a result,a group of inequality chains with clear geometric meaning
has been put forward in the paper.
在非钝角三角形的垂心处给出了Erds-Mordell不等式的一个精细,得到了一条几何意义清楚的不等式链。
4) cone,cone pyrometer
(拉管机的)垂直心轴
5) vertical line through center of gravity
垂直垂心线
6) erect [英][ɪ'rekt] [美][ɪ'rɛkt]
垂的
补充资料:垂心
三角形三条高(所在直线)的交点。锐角三角形的垂心在三角形形内;直角三角形的垂心与直角顶点重合;钝角三角形的垂心在三角形形外。