*Vertices 3
1 "车用发动机" 0.0 0.0 0.0 x_fact 17.222222 y_fact 28.888889
2 "内燃机学报" 0.0 0.0 0.0 x_fact 10.000000 y_fact 41.111111
3 "汽车工程" 0.0 0.0 0.0 x_fact 7.777778 y_fact 30.000000
*Matrix 
0.000000 0.879591 0.316826 
0.879591 0.000000 0.470040 
0.316826 0.470040 0.000000