radian
🇺🇸
/ˈreɪdiən/
🇬🇧
/ˈreɪdiən/
noun
R
A measure for angles. One radian is the angle made when you take the radius of a circle and wrap it along the edge of the circle.
The engineer explained that the machine's arm rotated 2 radians, which is a bit more than 90 degrees.
這位工程師解釋說，機器的手臂旋轉了2弧度，這比90度略多一些。
translation
弧度
詞形變化
Plural
radians