*Vertices 3
1 "机械工程学报" 0.0 0.0 0.0 x_fact 10.045662 y_fact 48.630137
2 "中国机械工程" 0.0 0.0 0.0 x_fact 6.164384 y_fact 43.378995
3 "工程设计学报" 0.0 0.0 0.0 x_fact 4.566210 y_fact 7.990868
*Matrix 
0.000000 0.378958 0.555612 
0.378958 0.000000 0.607586 
0.555612 0.607586 0.000000