*Vertices 5
1 "石油钻采工艺" 0.0 0.0 0.0 x_fact 1.385042 y_fact 15.789474
2 "中国海上油气工程" 0.0 0.0 0.0 x_fact 3.878116 y_fact 5.540166
3 "石油机械" 0.0 0.0 0.0 x_fact 2.770083 y_fact 43.213296
4 "工业工程与管理" 0.0 0.0 0.0 x_fact 0.000000 y_fact 3.324100
5 "岩土工程学报" 0.0 0.0 0.0 x_fact 0.000000 y_fact 32.132964
*Matrix 
0.000000 0.348942 0.000000 0.000000 0.000000 
0.348942 0.000000 0.340907 0.319801 0.533002 
0.000000 0.340907 0.000000 0.000000 0.000000 
0.000000 0.319801 0.000000 0.000000 0.000000 
0.000000 0.533002 0.000000 0.000000 0.000000