radian.
/rey-dee-uhn/US // ˈreɪ di ən //UK // (ˈreɪdɪən) //
弧度,弪度,径向,弧形
Definitions
n.noun · 名词
- 1.
Mathematics.
- ›the measure of a central angle subtending an arc equal in length to the radius: equal to 57.2958°. Abbreviation: rad
Examples
Strob, strob, n. the angular velocity of one radian per second.
The torsion couple per radian was determined by preliminary experiments.
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