*Vertices 4
1 "焊接学报" 0.0 0.0 0.0 x_fact 6.060606 y_fact 23.140496
2 "电焊机" 0.0 0.0 0.0 x_fact 15.977961 y_fact 32.231405
3 "焊接" 0.0 0.0 0.0 x_fact 15.702479 y_fact 22.314050
4 "焊接技术" 0.0 0.0 0.0 x_fact 13.223140 y_fact 22.314050
*Matrix 
0.000000 0.545799 0.826004 0.701319 
0.545799 0.000000 0.680823 0.638172 
0.826004 0.680823 0.000000 0.897950 
0.701319 0.638172 0.897950 0.000000