n.二等分物；二等分線

Jiang from hate exactly one bisector. 一江離恨恰平分。

A perpendicular bisector of a chord passes through the centre and bisects the arc. 弦的垂直平分線經(jīng)過(guò)圓心，并且平分弦所對(duì)的兩條弧。

The article discusses the determination and quality of angular bisector of two lines. 利用二次曲線的射影理論討論了二直線夾角的平分線的確定與性質(zhì)。

It is superposition that the bisector of the vertex angle, the median and the height of the base in an isosceles triangle. 等腰三角形的頂角平分線、底邊上的中線和底邊上的高互相重合，簡(jiǎn)稱“三線合一”。

The method of round or adjustment curve suruey and design is laying geometer out the angle bisector according to cosine the ormern. 全站儀安置在分角線上任意點(diǎn)測(cè)設(shè)圓曲線,以及緩和曲線原理是根據(jù)余弦定理,全站儀測(cè)設(shè)方法是應(yīng)用極坐標(biāo)法進(jìn)行測(cè)設(shè)曲線。