Read Edit View history 平面曲线 píngmiànqūxiàn plane curve Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 平面曲线/平面曲線 · píngmiànqūxiàn · plane curve 2026/03/04 平面曲线 / 平面曲線 píngmiànqūxiàn plane curve (mathematics) a curve that lies entirely within a single plane 圆形是最基本的平面曲线之一。 created sense Mar 4, 2026, 02:25 AM