英['siːkənt]美['siːkənt] adj. 割的;切的;交差的 n. 割线;正切 中文 双解 英英 词法 noun(名词) 正割 割线 noun(名词) in a triangle that has one angle of 90°, the ratio of the hypotenuse (= the length of the side opposite the 90° angle) to the length of the side next to an angle less than 90°正割 a line that crosses a circle at two places割线 n.a straight line that intersects a curve at two or more pointsratio of the hypotenuse to the adjacent side of a right-angled triangle同义词:sec 词态 语态 双解例句 noun(名词) 正割 割线 实用短语secant linearc secantsecant modulus正割模数,割线模量,本构模型,割线模数secant stiffness matrixinverse secant反正割secant curvesecant projection正割射影,正割投影secant meridian割经线secant law 常用短语secant method[化]割线法;正割法hyperbolic secant双曲正割