*Vertices 3
1 "机械科学与技术" 0.0 0.0 0.0 x_fact 14.769976 y_fact 37.288136
2 "中国机械工程" 0.0 0.0 0.0 x_fact 9.685230 y_fact 49.152542
3 "机械制造" 0.0 0.0 0.0 x_fact 12.348668 y_fact 13.559322
*Matrix 
0.000000 0.692639 0.869250 
0.692639 0.000000 0.951822 
0.869250 0.951822 0.000000