用软件转换,东经56.4°=56°24′00″,北纬108.9°=108°54′00″.按6°带划分,中央子午线是105°,X=6260039.4967,Y=(18)740744.5141；按3°带划分,中央子午线是108°,X=6253574.2619,Y=(36)555572.1735.（Y坐标括号...