center of an area

程式设计语言"... ... "二次曲面心"," center of a quadric" "区域中心"," center of an area" "爆发中心"," center of burst" ...

... y y y x x x x x x y y y 形心( center of an area ) 公式 形 形 心 心 ( center of an area ) ( center of an area ) 公式 公...