*Vertices 4
1 "现代铸铁" 0.0 0.0 0.0 x_fact 6.158358 y_fact 9.237537
2 "特种铸造及有色合金" 0.0 0.0 0.0 x_fact 9.384164 y_fact 38.416422
3 "铸造" 0.0 0.0 0.0 x_fact 18.768328 y_fact 36.510264
4 "铸造技术" 0.0 0.0 0.0 x_fact 9.677419 y_fact 15.835777
*Matrix 
0.000000 0.359403 0.725626 0.802410 
0.359403 0.000000 0.776699 0.558856 
0.725626 0.776699 0.000000 0.821027 
0.802410 0.558856 0.821027 0.000000