*Vertices 4 1 "高原气象" 0.0 0.0 0.0 x_fact 2.716161 y_fact 34.087823 2 "中国沙漠" 0.0 0.0 0.0 x_fact 4.164780 y_fact 38.162064 3 "冰川冻土" 0.0 0.0 0.0 x_fact 3.893164 y_fact 19.646899 4 "地理学报" 0.0 0.0 0.0 x_fact 1.493889 y_fact 8.103214 *Matrix 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000