*Vertices 4
1 "东北大学学报" 0.0 0.0 0.0 x_fact 3.658537 y_fact 29.539295
2 "金属学报" 0.0 0.0 0.0 x_fact 2.303523 y_fact 23.577236
3 "钢铁研究学报" 0.0 0.0 0.0 x_fact 7.859079 y_fact 28.184282
4 "钢铁" 0.0 0.0 0.0 x_fact 4.336043 y_fact 18.699187
*Matrix 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.330031 
0.000000 0.000000 0.330031 0.000000