*Vertices 5
1 "机械设计" 0.0 0.0 0.0 x_fact 10.466139 y_fact 15.303430
2 "机械科学与技术" 0.0 0.0 0.0 x_fact 14.687775 y_fact 22.603342
3 "机械工程学报" 0.0 0.0 0.0 x_fact 7.651715 y_fact 19.437115
4 "机械设计与研究" 0.0 0.0 0.0 x_fact 13.280563 y_fact 18.117854
5 "中国机械工程" 0.0 0.0 0.0 x_fact 8.795075 y_fact 24.538259
*Matrix 
0.000000 0.812392 0.572413 0.864861 0.645288 
0.812392 0.000000 0.740412 0.857694 0.675785 
0.572413 0.740412 0.000000 0.694525 0.597197 
0.864861 0.857694 0.694525 0.000000 0.622916 
0.645288 0.675785 0.597197 0.622916 0.000000