為您提供radian英英釋意。" />

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首頁英語詞典radianradian英英釋意

radian

英 ['re?d??n] 美['red??n]
  • n. [數(shù)] 弧度
  • n. (Radian)人名；(羅)拉迪安

英英釋意

1. the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)