*Vertices 3
1 "分析化学" 0.0 0.0 0.0 x_fact 0.000000 y_fact 48.955224
2 "中国皮革" 0.0 0.0 0.0 x_fact 4.029851 y_fact 25.970149
3 "皮革科学与工程" 0.0 0.0 0.0 x_fact 16.716418 y_fact 25.074627
*Matrix 
0.000000 0.000000 0.213679 
0.000000 0.000000 0.907225 
0.213679 0.907225 0.000000