*Vertices 4
1 "车用发动机" 0.0 0.0 0.0 x_fact 16.431925 y_fact 24.882629
2 "内燃机学报" 0.0 0.0 0.0 x_fact 7.042254 y_fact 36.619718
3 "燃烧科学与技术" 0.0 0.0 0.0 x_fact 9.389671 y_fact 21.596244
4 "汽车技术" 0.0 0.0 0.0 x_fact 4.225352 y_fact 16.901408
*Matrix 
0.000000 0.789955 0.576209 0.482458 
0.789955 0.000000 0.697847 0.263745 
0.576209 0.697847 0.000000 0.000000 
0.482458 0.263745 0.000000 0.000000