释义 |
pe·rim·e·ter AHD[pə-rĭmʹĭ-tər] D.J.[pəˈrɪmɪtə]K.K.[pəˈrɪmɪtɚ]n.(名词)- Mathematics 【数学】
- A closed curve bounding a plane area.周界:围绕一平面域的封闭性边界
- The length of such a boundary.周长:此类边界的长度
- The outer limits of an area.See Synonyms at circumference 一区域的外限 参见 circumference
- A fortified strip or boundary usually protecting a military position.周界:筑有防御工事的地带或边界,常用以保护一军事地点
- Middle English perimetre 中古英语 perimetre
- from Latin perimetros 源自 拉丁语 perimetros
- from Greek 源自 希腊语
- peri- [peri-] peri- [前缀,表示“周围”]
- metron [measure] * see meter 2metron [测量] * 参见 meter2
per'imetʹric AHD[pĕr'ə-mĕtʹrĭk] 或 per'i·metʹri·cal [-rĭ-kəl] (形容词)per'imetʹrically adv.(副词) |