*Vertices 4
1 "天文学进展" 0.0 0.0 0.0 x_fact 1.388889 y_fact 36.111111
2 "计量学报" 0.0 0.0 0.0 x_fact 2.777778 y_fact 22.222222
3 "电子测量技术" 0.0 0.0 0.0 x_fact 1.388889 y_fact 4.166667
4 "宇航计测技术" 0.0 0.0 0.0 x_fact 26.388889 y_fact 37.500000
*Matrix 
0.000000 0.000000 0.000000 0.293026 
0.000000 0.000000 0.508513 0.800840 
0.000000 0.508513 0.000000 0.576818 
0.293026 0.800840 0.576818 0.000000