文[1]在对椭圆的一个性质进行详细研讨后,给出了一个圆锥曲线的统一性质——推广2,现摘抄如下:推广2若点C是圆锥曲线焦点弦一端点与x轴上一定点P的连线与相应准线的交点,则焦点弦的另一个端点与点C的连线必过x轴上的定点Q,该定点满足点P,焦点F,点Q到准线的距离的倒数成等差数列 [1] After a detailed discussion of a property of an ellipse, a unified property of a conic is given - Generalization 2, now extracted as follows: Generalization 2 If point C is the end point of the chord focus chord and x Point P of the intersection with the corresponding line of intersection, the focal point of the other end of the string and the connection point C must be over the x-axis fixed point Q, the fixed point to meet the point P, focus F, point Q to the quasi-line distance The countdown into arithmetic sequence