*Vertices 3
1 "噪声与振动控制" 0.0 0.0 0.0 x_fact 10.091743 y_fact 20.183486
2 "中国造船" 0.0 0.0 0.0 x_fact 1.834862 y_fact 16.513761
3 "振动工程学报" 0.0 0.0 0.0 x_fact 0.917431 y_fact 63.302752
*Matrix 
0.000000 0.468897 0.450151 
0.468897 0.000000 0.000000 
0.450151 0.000000 0.000000