*Vertices 7
1 "现代铸铁" 0.0 0.0 0.0 x_fact 3.361345 y_fact 4.893722
2 "金属学报" 0.0 0.0 0.0 x_fact 1.680672 y_fact 8.205635
3 "中国有色金属学报" 0.0 0.0 0.0 x_fact 8.848245 y_fact 28.966881
4 "特种铸造及有色合金" 0.0 0.0 0.0 x_fact 6.475531 y_fact 14.186851
5 "热加工工艺" 0.0 0.0 0.0 x_fact 7.315868 y_fact 9.540287
6 "铸造" 0.0 0.0 0.0 x_fact 11.616411 y_fact 19.871478
7 "铸造技术" 0.0 0.0 0.0 x_fact 11.418685 y_fact 14.335146
*Matrix 
0.000000 0.000000 0.000000 0.355373 0.552150 0.774607 0.762944 
0.000000 0.000000 0.333948 0.250749 0.457130 0.334745 0.284846 
0.000000 0.333948 0.000000 0.341440 0.630156 0.341328 0.384833 
0.355373 0.250749 0.341440 0.000000 0.614936 0.716608 0.734434 
0.552150 0.457130 0.630156 0.614936 0.000000 0.771289 0.763615 
0.774607 0.334745 0.341328 0.716608 0.771289 0.000000 0.937397 
0.762944 0.284846 0.384833 0.734434 0.763615 0.937397 0.000000