Read Edit View history 二次曲线 èrcìqūxiàn conic Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 二次曲线/二次曲線 · èrcìqūxiàn · conic 2026/03/04 二次曲线 / 二次曲線 èrcìqūxiàn conic a quadratic curve or conic section in geometry, such as a circle, ellipse, parabola, or hyperbola 圆、椭圆、双曲线和抛物线都是二次曲线。 created sense Mar 4, 2026, 02:25 AM