• n. [数] 弧度
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"angle subtended at the center of a circle by an arc equal in length to the radius," 1879, from radius.
1. The radian of her graceful neck particularly conquers artists'inspiration.

2. Excellent radian , beautiful decoration, the artwork of the war!

3. W is the radian frequency deviation from the center frequency.
w是角频率与中心频率的偏离值.

4. Each vertex in average distance of each radian located in circumference.

5. Does sunglass radian damage eyesight greatly too?