英语词汇“radian”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	radian
释义	ra·di·an \ˈrādēən\ noun (-s) Etymology: radius + -an : a unit of plane angular measurement equal to the angle at the center of a circle subtended by an arc equal in length to the radius < since the circumference of a circle is equal to 2π times its radius, the number of radians in an angle of 360 degrees or in a complete turn is 2π, so that 1 radian equals about 57.29 degrees >
随便看	characteristic radiation characteristic root characteristic temperature characteristic value characteristic vector characteristic x rays characterizable characterization characterize characterless character loan character neurosis character note characterologic characterological characterologist characterology character piece characters character sketch character study character witness charactery charactonym charactry

英语词典包含332784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。