V2EX bisector

Bisector

释义 Definition

bisector(名词):(几何)平分线/平分面把一个角或线段等分成相等两部分的直线、射线或平面。最常见的是 angle bisector(角平分线)。(在更广义用法中,也可指“把某物分成两半的东西”。)

发音 Pronunciation

/basktr/

例句 Examples

A bisector splits the angle into two equal parts.
角平分线把这个角分成相等的两部分。

Draw the perpendicular bisector of the segment to find points equidistant from both endpoints.
画出这条线段的垂直平分线,就能找到到两端点距离相等的点。

词源 Etymology

来自 **bi-**(“二、两”)+ sector(“切割者/分割线”),与 bisect(“平分”)同源;核心含义是“把某物切成两等份的东西”。

相关词 Related Words

文学与经典用例 Literary Works

  • Euclid Elements(《几何原本》英文译本中常见“angle bisector / perpendicular bisector”等表述)
  • H. S. M. Coxeter Introduction to Geometry(几何经典教材中频繁使用“bisector”讨论角与线段的性质)
  • Edwin A. Abbott Flatland: A Romance of Many Dimensions(《平面国》涉及大量几何语言,在相关章节与注释中常出现“bisect/bisector”一类术语)
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