*Vertices 5
1 "机械设计" 0.0 0.0 0.0 x_fact 8.654751 y_fact 14.393227
2 "机械科学与技术" 0.0 0.0 0.0 x_fact 11.947319 y_fact 19.190969
3 "机械工程学报" 0.0 0.0 0.0 x_fact 12.605833 y_fact 26.152399
4 "机械设计与研究" 0.0 0.0 0.0 x_fact 7.431797 y_fact 11.006585
5 "中国机械工程" 0.0 0.0 0.0 x_fact 11.194732 y_fact 29.256820
*Matrix 
0.000000 0.788642 0.570885 0.740419 0.616037 
0.788642 0.000000 0.582490 0.826250 0.586021 
0.570885 0.582490 0.000000 0.547436 0.798808 
0.740419 0.826250 0.547436 0.000000 0.586547 
0.616037 0.586021 0.798808 0.586547 0.000000