radii

radii

['reidiai]

n. 半径
名词radius的复数形式

例句与用法：

An early instrument for measuring altitude of celestial bodies, consisting of a90= graduated arc with a movable radius for measuring angles.

象限仪用来测量天体纬度的一种早期工具，由一个有90度刻度的圆弧和一个用来测量角度的可移动的半径构成

Moving or directed along a radius.

沿着或向着半径移动的

Every family within a radius of25 miles of the city center.

住在离城中心半径25英里的范围内的家庭

We can compute the circular area with radius.

我们能用半径计算出圆的面积。

---

(radius的复数)