The ratio of the distance of any point on a conic section from a focus to its distance from the corresponding directrix. This ratio is constant for any particular conic section.
英
美
释义
离心率二次曲线上任何一点到焦点的距离与到准线的距离之比对任一特定二次曲线来说,这个比值都是一个常数
把海词放在桌面上,查词最方便
触屏版
|
电脑版
©2003 - 2024 海词词典(Dict.cn)
立即下载