... diamertric(al) 直径的 diameter of a circle 圆的直径 diameter of a conic 二次曲线的直径 ...
双语例句
1
The axis ofacircle is its diameter.
圆的对称中心线就是直径。
《牛津词典》
2
Adiameter passes through the center ofacircle.
直径从圆心穿过。
3
Abstract: this paper designs a measuring instrument which can measure addendum circle and dedendum circle diameterof odd_tooth gears and can define all main parameters of gears.