*Vertices 3
1 "金属学报" 0.0 0.0 0.0 x_fact 2.493766 y_fact 35.411471
2 "钢铁研究学报" 0.0 0.0 0.0 x_fact 11.471322 y_fact 35.162095
3 "钢铁" 0.0 0.0 0.0 x_fact 6.733167 y_fact 29.426434
*Matrix 
0.000000 0.263578 0.202939 
0.263578 0.000000 0.391221 
0.202939 0.391221 0.000000