*Vertices 4
1 "机械工程材料" 0.0 0.0 0.0 x_fact 8.209960 y_fact 14.266487
2 "金属学报" 0.0 0.0 0.0 x_fact 0.807537 y_fact 22.476447
3 "金属热处理" 0.0 0.0 0.0 x_fact 8.748318 y_fact 31.090175
4 "摩擦学学报" 0.0 0.0 0.0 x_fact 2.018843 y_fact 32.166891
*Matrix 
0.000000 0.335300 0.587662 0.341424 
0.335300 0.000000 0.252404 0.000000 
0.587662 0.252404 0.000000 0.000000 
0.341424 0.000000 0.000000 0.000000