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Bulletin of Surveying and Mapping
0494-0911
1989 Issue 4
tong bu wei xing dong tai ding wei de neng li
cheng peng fei ; hu jian guo
..............page:5
dao xian ping cha qu quan tan tao
shi chang heng
..............page:14
xin xi
..............page:4
di er dai gps jie shou ji -ashtech
xie shi jie
..............page:20