*Vertices 4
1 "流体机械" 0.0 0.0 0.0 x_fact 1.369863 y_fact 10.176125
2 "润滑与密封" 0.0 0.0 0.0 x_fact 17.612524 y_fact 35.616438
3 "压缩机技术" 0.0 0.0 0.0 x_fact 1.565558 y_fact 8.219178
4 "摩擦学学报" 0.0 0.0 0.0 x_fact 2.152642 y_fact 45.988258
*Matrix 
0.000000 0.245011 0.270901 0.000000 
0.245011 0.000000 0.000000 0.547738 
0.270901 0.000000 0.000000 0.000000 
0.000000 0.547738 0.000000 0.000000