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-新都网

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	demospongia demospongiae demosthenean demosthenian demosthenic demote demothball demotic demotic demotic egyptian demotion demotist demount demountable dempster demulcent demulsibility demulsification demulsify demur demure demurely demureness pleo- pleo

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