*Vertices 4
1 "电力电子技术" 0.0 0.0 0.0 x_fact 0.000000 y_fact 37.788018
2 "机车电传动" 0.0 0.0 0.0 x_fact 8.294931 y_fact 27.649770
3 "铁道车辆" 0.0 0.0 0.0 x_fact 1.382488 y_fact 22.119816
4 "内燃机车" 0.0 0.0 0.0 x_fact 5.990783 y_fact 12.442396
*Matrix 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.609628 
0.000000 0.000000 0.000000 0.350682 
0.000000 0.609628 0.350682 0.000000