*Vertices 4
1 "工程机械" 0.0 0.0 0.0 x_fact 14.563107 y_fact 34.951456
2 "建筑机械" 0.0 0.0 0.0 x_fact 3.883495 y_fact 20.388350
3 "施工技术" 0.0 0.0 0.0 x_fact 0.000000 y_fact 14.563107
4 "建筑机械化" 0.0 0.0 0.0 x_fact 15.533981 y_fact 30.097087
*Matrix 
0.000000 0.676627 0.000000 0.534492 
0.676627 0.000000 0.000000 0.531891 
0.000000 0.000000 0.000000 0.000000 
0.534492 0.531891 0.000000 0.000000