*Vertices 4
1 "焊管" 0.0 0.0 0.0 x_fact 3.389831 y_fact 10.169492
2 "无损检测" 0.0 0.0 0.0 x_fact 0.726392 y_fact 34.140436
3 "中国机械工程" 0.0 0.0 0.0 x_fact 2.663438 y_fact 46.004843
4 "焊接技术" 0.0 0.0 0.0 x_fact 4.600484 y_fact 9.685230
*Matrix 
0.000000 0.000000 0.000000 0.675434 
0.000000 0.000000 0.000000 0.000000 
0.000000 0.000000 0.000000 0.317601 
0.675434 0.000000 0.317601 0.000000