*Vertices 7
1 "金属学报" 0.0 0.0 0.0 x_fact 2.467532 y_fact 12.922078
2 "中国有色金属学报" 0.0 0.0 0.0 x_fact 8.181818 y_fact 20.064935
3 "特种铸造及有色合金" 0.0 0.0 0.0 x_fact 11.168831 y_fact 24.025974
4 "热加工工艺" 0.0 0.0 0.0 x_fact 5.519481 y_fact 7.012987
5 "中国铸造装备与技术" 0.0 0.0 0.0 x_fact 3.831169 y_fact 5.584416
6 "铸造" 0.0 0.0 0.0 x_fact 14.610390 y_fact 22.467532
7 "铸造技术" 0.0 0.0 0.0 x_fact 5.194805 y_fact 7.922078
*Matrix 
0.000000 0.490419 0.276884 0.704340 0.000000 0.270557 0.000000 
0.490419 0.000000 0.411278 0.635597 0.000000 0.399088 0.000000 
0.276884 0.411278 0.000000 0.572374 0.409662 0.791077 0.565240 
0.704340 0.635597 0.572374 0.000000 0.485646 0.683112 0.578000 
0.000000 0.000000 0.409662 0.485646 0.000000 0.797478 0.735991 
0.270557 0.399088 0.791077 0.683112 0.797478 0.000000 0.817745 
0.000000 0.000000 0.565240 0.578000 0.735991 0.817745 0.000000