Radian
01
弧度, 测量角度的单位，定义为圆的半径沿其边缘放置时所形成的角度
a unit for measuring angles, defined by the angle made when the radius of a circle is laid along its edge
语法信息
有生性状态
抽象
形态构成
复合词
可数
复数形式
radians
例子
An angle of 1 radian means the arc length is the same as the radius of the circle.
1 弧度的角度意味着弧长与圆的半径相同。
