*Vertices 4
1 "液压与气动" 0.0 0.0 0.0 x_fact 10.633214 y_fact 20.669056
2 "机械工程学报" 0.0 0.0 0.0 x_fact 7.526882 y_fact 27.718041
3 "中国机械工程" 0.0 0.0 0.0 x_fact 3.464755 y_fact 22.939068
4 "机床与液压" 0.0 0.0 0.0 x_fact 17.204301 y_fact 28.673835
*Matrix 
0.000000 0.310661 0.228128 0.706305 
0.310661 0.000000 0.380303 0.409213 
0.228128 0.380303 0.000000 0.670101 
0.706305 0.409213 0.670101 0.000000