V2EX perimeter

Perimeter

释义 Definition

perimeter(名词):(平面图形的)周长;(区域、场地的)周边/边界。(也可指“防卫线/警戒线”等更引申的“外围边界”含义。)

发音 Pronunciation (IPA)

/prmtr/

例句 Examples

The perimeter of the square is 20 centimeters.
这个正方形的周长是20厘米。

Police set up a perimeter around the building to keep everyone safe.
警方在大楼周围设立了警戒线以确保所有人安全。

词源 Etymology

来自希腊语 peri-(“周围”)+ metron(“测量”),原意是“围绕的测量”,因此用于表示图形的周长或区域的外缘边界。

相关词 Related Words

文学作品中的用例 Literary Works

  • The Elements Euclid(《几何原本》:讨论几何图形的边界与度量概念时常涉及“周界/周长”相关术语)
  • A Mathematician’s Apology G. H. Hardy(《一个数学家的辩白》:涉及几何与数学语言时可见此类词汇使用)
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