*Vertices 3
1 "焊管" 0.0 0.0 0.0 x_fact 7.407407 y_fact 32.592593
2 "焊接" 0.0 0.0 0.0 x_fact 15.555556 y_fact 33.333333
3 "焊接技术" 0.0 0.0 0.0 x_fact 9.629630 y_fact 34.074074
*Matrix 
0.000000 0.323761 0.229333 
0.323761 0.000000 0.818095 
0.229333 0.818095 0.000000