空間中線段的垂直平分面 1.按壓滑鼠左鍵再移動,可移動任一物件) 2.(按壓滑鼠右鍵再移動,可旋轉視角) 3.[互動連結]: 按我按我！(3D) The Perpendicular Bisector Plane of the Space Segment 1.To move the object, press the left button while Dragging. 2.To scroll the view, press the right button while Dragging. 3.[Link]: Interactive! (3D)