*Vertices 3
1 "航空学报" 0.0 0.0 0.0 x_fact 3.669725 y_fact 27.522936
2 "飞行力学" 0.0 0.0 0.0 x_fact 8.256881 y_fact 23.853211
3 "宇航学报" 0.0 0.0 0.0 x_fact 4.128440 y_fact 48.623853
*Matrix 
0.000000 0.247833 0.000000 
0.247833 0.000000 0.374311 
0.000000 0.374311 0.000000