radian
noun /ˈreɪdiən/
/ˈreɪdiən/
(geometry)- a unit used to measure an angle, equal to the angle at the centre of a circle whose arc is the same length as the circle’s radiusWord Originlate 19th cent.: from radius + -an.
| 单词 | radian |
| 释义 | radiannoun /ˈreɪdiən/ /ˈreɪdiən/ (geometry)
|
| 随便看 |
英语词典包含84843条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。