point t of inflection反曲点
proper point of inflection固有变曲点
at the point of inflection拐点的时候
point of inflection of frequency频率拐点
deviation of inflection point拐点偏移距
Inflection point of transition拐点过渡
lower inflection point of curve曲线低位转折点
inflection point of distribution curve分布曲线拐点
movement distance of inflection point水平移动系数
N（名词） a stationary point on a curve at which the tangent is horizontal or vertical and where tangents on either side have the same sign 拐点 [maths]