角平分线

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1
Bisect
... Axis 轴 Bisect 平分；角平分线；等分 Cartesian corrdinates 直角坐标系；笛卡尔坐标 ...
2
angle e bisector
... radius半径开 angle e bisector角平分线 diagonal对角线 ...
3
angle bisector
... radius 半径 angle bisector 角平分线 diagonal 对角线 ...

短语

1
一种角平分线绘制器，它由四条连杆铰接组成的菱形框架构成。
The utility model relates to an angle bisector drawing instrument which consists of a rhombus-shaped frame formed by articulating four connecting bars.
2
通过对角平分线投影特性的分析、总结，从理论上证明了角平分线投影特性。
The analysis and summarization, the projection character of Angle bisector is proved on theory.
3
解决一追二问题的方法共讨论了三种：初始角的平分线航向法、瞬时角的平分线航向法、中点轨迹法。
Three methods are discussed to solve the one pursue two problem, they are course method of the initial angular bisector, course method of the instantaneous angular bisector and mid-point path method.

角平分线
角平分线定义（Angle bisector definition）从一个角的顶点引出一条射线，把这个角分成两个完全相同的角，这条射线叫做这个角的角平分线。三角形三条角平分线的交点叫做三角形的内心。三角形的内心到三边的距离相等，是该三角形内切圆的圆心。

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