1·The method is greatly improved on an old one by calculating traverse error orthocenter, coordinate transformation and separation.
该方法通过求导线误差重心，坐标变换和分离的手段对原方法作了重大的改进，从而使计算变得简单。
2·The method is greatly improved on an old one by calculating traverse error orthocenter, coordinate transformation and separation. so as to make the calculation easier.
该方法通过求导线误差重心，坐标变换和分离的手段对原方法作了重大的改进，从而使计算变得简单。
3·This paper explores into the distance formula between median point, orthocenter, circumcenter and inner point of triangle by means of two related formulas of vector methods.
应用两个向量法相关公式探讨了三角形重心、垂心、外心以及内心之间的距离公式。