*Vertices 3
1 "力学学报" 0.0 0.0 0.0 x_fact 2.262443 y_fact 17.194570
2 "工程力学" 0.0 0.0 0.0 x_fact 30.316742 y_fact 48.868778
3 "土木工程学报" 0.0 0.0 0.0 x_fact 9.049774 y_fact 33.936652
*Matrix 
0.000000 0.501196 0.000000 
0.501196 0.000000 0.827537 
0.000000 0.827537 0.000000