Read Edit View history 弧线长 húxiàncháng arc length Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 弧线长/弧線長 · húxiàncháng · arc length 2026/03/04 弧线长 / 弧線長 húxiàncháng arc length the distance along a curved line or a segment of a curve 计算圆弧的弧线长需要知道其半径和圆心角。 created sense Mar 4, 2026, 02:25 AM