*Vertices 4
1 "高分子材料科学与工程" 0.0 0.0 0.0 x_fact 1.481481 y_fact 35.740741
2 "中国胶粘剂" 0.0 0.0 0.0 x_fact 14.259259 y_fact 33.333333
3 "粘接" 0.0 0.0 0.0 x_fact 11.296296 y_fact 17.222222
4 "化学与粘合" 0.0 0.0 0.0 x_fact 12.222222 y_fact 13.703704
*Matrix 
0.000000 0.315821 0.000000 0.378318 
0.315821 0.000000 0.948416 0.989843 
0.000000 0.948416 0.000000 0.950141 
0.378318 0.989843 0.950141 0.000000