- 曲线图 qūxiàntú line graphdiagram consisting of curves or lines representing mathematical or statistical data; line graph; line diagram
- 双曲线 shuāngqūxiàn hyperbola(math) A curve formed by the intersection of a double cone with a plane that cuts both halves of the cone
- 圆锥曲线 yuánzhuīqūxiàn conic sectiona curve obtained by intersecting a cone with a plane, such as a circle, ellipse, parabola, or hyperbola
- 二次曲线 èrcìqūxiàn quadratic curvea curve of the second degree in geometry, including the circle, ellipse, hyperbola, and parabola; conic section
- 曲线美 qūxiànměi curvaceousnessthe aesthetic beauty of curved lines, often used to describe a shapely or attractive body
- 曲线板 qūxiànbǎn French curveA drawing tool made of wood, hard rubber, or plastic used for drawing various curves; curve ruler
- 曲线球 qūxiànqiú curveballa pitch in baseball that is thrown with spin so that it curves or breaks as it approaches the plate
- 曲线论 qūxiànlùn theory of curves(mathematics) the theory of curves
- 曲线锯 qūxiànjù jigsawjigsaw; a power tool with a narrow blade used for cutting irregular shapes and curves in wood or other materials
- 椭圆曲线 tuǒyuánqūxiàn elliptic curvea smooth, projective, algebraic curve of genus one on which there is a specified point; used in number theory and cryptography
- 三次曲线 sāncìqūxiàn cubic curvea curve in geometry defined by a third-degree polynomial equation
- 衰变曲线 shuāibiànqūxiàn decay curvea graph showing how a radioactive substance breaks down over time
- 代数曲线 dàishùqūxiàn algebraic curvemathematical curve defined by a polynomial equation
- 双曲线正弦 shuāngqūxiànzhèngxián hyperbolic sinehyperbolic sine; the mathematical function sinh
- 学习曲线 xuéxíqǔxiàn learning curveGraph showing the relationship between amount of practice or experience and the resulting level of skill or knowledge
- 平面曲线 píngmiànqūxiàn plane curveA curve that lies entirely within a single plane, such as a circle or a parabola.
- 曲线拟合 qūxiànnǐhé curve fittingFitting a curve to a set of data points using a mathematical function
- 曲线救国 qūxiànjiùguó saving the nation through a curved pathStrategy during the Second Sino-Japanese War where individuals ostensibly collaborated with the Japanese while claiming to work secretly for China