central angle

       
  • n. [数]圆心角

central angle的用法和样例:

例句

用作名词 (n.)
  1. A radian is the angle subtended by an arc of a circle whose length is just equal to the radius.
    一弧度就是长度刚好等于半径的一段圆弧所对的圆心角。
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