*Vertices 7
1 "兰州理工大学学报" 0.0 0.0 0.0 x_fact 3.671706 y_fact 21.382289
2 "焊接学报" 0.0 0.0 0.0 x_fact 6.263499 y_fact 16.846652
3 "机械工程学报" 0.0 0.0 0.0 x_fact 2.159827 y_fact 16.630670
4 "电焊机" 0.0 0.0 0.0 x_fact 15.334773 y_fact 25.809935
5 "焊接" 0.0 0.0 0.0 x_fact 3.131749 y_fact 4.967603
6 "焊接技术" 0.0 0.0 0.0 x_fact 4.967603 y_fact 7.235421
7 "电力电子技术" 0.0 0.0 0.0 x_fact 0.215983 y_fact 7.127430
*Matrix 
0.000000 0.000000 0.000000 0.236718 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.627619 0.852914 0.706205 0.000000 
0.000000 0.000000 0.000000 0.000000 0.275894 0.253157 0.000000 
0.236718 0.627619 0.000000 0.000000 0.554139 0.648765 0.000000 
0.000000 0.852914 0.275894 0.554139 0.000000 0.801388 0.000000 
0.000000 0.706205 0.253157 0.648765 0.801388 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000