*Vertices 7
1 "材料研究学报" 0.0 0.0 0.0 x_fact 3.007519 y_fact 6.709080
2 "金属学报" 0.0 0.0 0.0 x_fact 2.949682 y_fact 12.261423
3 "中国有色金属学报" 0.0 0.0 0.0 x_fact 8.791209 y_fact 19.375361
4 "特种铸造及有色合金" 0.0 0.0 0.0 x_fact 9.485252 y_fact 20.936958
5 "热加工工艺" 0.0 0.0 0.0 x_fact 6.593407 y_fact 7.923655
6 "铸造" 0.0 0.0 0.0 x_fact 10.699826 y_fact 17.698091
7 "金属热处理" 0.0 0.0 0.0 x_fact 5.494505 y_fact 15.095431
*Matrix 
0.000000 0.562498 0.400609 0.216803 0.519431 0.000000 0.000000 
0.562498 0.000000 0.494303 0.278752 0.610530 0.277073 0.268533 
0.400609 0.494303 0.000000 0.412960 0.566750 0.408171 0.247866 
0.216803 0.278752 0.412960 0.000000 0.481952 0.797957 0.000000 
0.519431 0.610530 0.566750 0.481952 0.000000 0.568669 0.728588 
0.000000 0.277073 0.408171 0.797957 0.568669 0.000000 0.000000 
0.000000 0.268533 0.247866 0.000000 0.728588 0.000000 0.000000