*Vertices 7
1 "现代铸铁" 0.0 0.0 0.0 x_fact 3.475104 y_fact 5.082988
2 "金属学报" 0.0 0.0 0.0 x_fact 1.607884 y_fact 8.454357
3 "中国有色金属学报" 0.0 0.0 0.0 x_fact 8.713693 y_fact 29.823651
4 "特种铸造及有色合金" 0.0 0.0 0.0 x_fact 6.690871 y_fact 14.782158
5 "中国铸造装备与技术" 0.0 0.0 0.0 x_fact 5.497925 y_fact 6.690871
6 "铸造" 0.0 0.0 0.0 x_fact 11.307054 y_fact 19.968880
7 "铸造技术" 0.0 0.0 0.0 x_fact 12.136929 y_fact 15.197095
*Matrix 
0.000000 0.000000 0.000000 0.354687 0.790644 0.769597 0.763277 
0.000000 0.000000 0.333557 0.250453 0.214423 0.334221 0.282205 
0.000000 0.333557 0.000000 0.341145 0.235739 0.340489 0.381674 
0.354687 0.250453 0.341145 0.000000 0.659782 0.718577 0.731889 
0.790644 0.214423 0.235739 0.659782 0.000000 0.891111 0.938815 
0.769597 0.334221 0.340489 0.718577 0.891111 0.000000 0.932378 
0.763277 0.282205 0.381674 0.731889 0.938815 0.932378 0.000000