*Vertices 12
1 "分析试验室" 0.0 0.0 0.0 x_fact 6.977722 y_fact 12.904582
2 "中国公共卫生" 0.0 0.0 0.0 x_fact 7.902480 y_fact 13.408995
3 "中国人兽共患病杂志" 0.0 0.0 0.0 x_fact 1.849517 y_fact 7.356032
4 "中国食品卫生杂志" 0.0 0.0 0.0 x_fact 1.765448 y_fact 2.395965
5 "预防医学情报杂志" 0.0 0.0 0.0 x_fact 0.042034 y_fact 0.336276
6 "实用预防医学" 0.0 0.0 0.0 x_fact 1.471206 y_fact 3.194620
7 "职业与健康" 0.0 0.0 0.0 x_fact 0.042034 y_fact 0.126103
8 "现代预防医学" 0.0 0.0 0.0 x_fact 1.429172 y_fact 2.732240
9 "中国卫生检验杂志" 0.0 0.0 0.0 x_fact 6.683480 y_fact 13.072720
10 "理化检验化学分册" 0.0 0.0 0.0 x_fact 7.019756 y_fact 12.610340
11 "食品科学" 0.0 0.0 0.0 x_fact 5.716688 y_fact 22.026061
12 "食品与发酵工业" 0.0 0.0 0.0 x_fact 4.707860 y_fact 9.836066
*Matrix 
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