*Vertices 3
1 "金属学报" 0.0 0.0 0.0 x_fact 2.597403 y_fact 54.870130
2 "钢铁研究学报" 0.0 0.0 0.0 x_fact 16.233766 y_fact 20.454545
3 "钢铁" 0.0 0.0 0.0 x_fact 5.844156 y_fact 24.675325
*Matrix 
0.000000 0.690254 0.201062 
0.690254 0.000000 0.806271 
0.201062 0.806271 0.000000