*Vertices 3
1 "焊接学报" 0.0 0.0 0.0 x_fact 8.888889 y_fact 40.000000
2 "机械工程学报" 0.0 0.0 0.0 x_fact 4.761905 y_fact 47.301587
3 "焊接" 0.0 0.0 0.0 x_fact 7.301587 y_fact 12.698413
*Matrix 
0.000000 0.000000 0.853047 
0.000000 0.000000 0.275665 
0.853047 0.275665 0.000000