*Vertices 7
1 "材料科学与工程学报" 0.0 0.0 0.0 x_fact 1.423027 y_fact 4.398448
2 "金属学报" 0.0 0.0 0.0 x_fact 1.681759 y_fact 11.836999
3 "硬质合金" 0.0 0.0 0.0 x_fact 1.875809 y_fact 4.204398
4 "中国有色金属学报" 0.0 0.0 0.0 x_fact 6.532988 y_fact 23.609314
5 "粉末冶金技术" 0.0 0.0 0.0 x_fact 3.298836 y_fact 5.109961
6 "稀有金属材料与工程" 0.0 0.0 0.0 x_fact 8.473480 y_fact 46.183700
7 "粉末冶金工业" 0.0 0.0 0.0 x_fact 4.139715 y_fact 4.657180
*Matrix 
0.000000 0.220810 0.000000 0.267940 0.294192 0.000000 0.389093 
0.220810 0.000000 0.000000 0.301605 0.332723 0.000000 0.303566 
0.000000 0.000000 0.000000 0.000000 0.474296 0.368341 0.765749 
0.267940 0.301605 0.000000 0.000000 0.483341 0.000000 0.513159 
0.294192 0.332723 0.474296 0.483341 0.000000 0.239601 0.877574 
0.000000 0.000000 0.368341 0.000000 0.239601 0.000000 0.350130 
0.389093 0.303566 0.765749 0.513159 0.877574 0.350130 0.000000