*Vertices 4
1 "金属学报" 0.0 0.0 0.0 x_fact 1.694915 y_fact 56.271186
2 "材料工程" 0.0 0.0 0.0 x_fact 10.508475 y_fact 16.610169
3 "宇航材料工艺" 0.0 0.0 0.0 x_fact 4.067797 y_fact 15.932203
4 "航空材料学报" 0.0 0.0 0.0 x_fact 8.813559 y_fact 11.186441
*Matrix 
0.000000 0.704681 0.000000 0.489789 
0.704681 0.000000 0.497516 0.846783 
0.000000 0.497516 0.000000 0.773724 
0.489789 0.846783 0.773724 0.000000