1009-2307
1989 Issue 1
pc 1500 ji nei cun rong liang de kuo chong
cao lai fa ;
cao lai fa ;
..............page:22-27
..............page:40-46
..............page:35-39
..............page:1-3+21
guo jia pu tong di tu ji se biao de yan jiu
Zhang Qingpu;An Zhen-zhen;Research lnstitute of Surveying & Mapping
Zhang Qingpu;An Zhen-zhen;Research lnstitute of Surveying & Mapping
..............page:4-13
..............page:27
guan yu wo guo 1957 nian jiu zhong li ji ben wang de jing du yu xi tong zhuan huan
Jiang Zhiheng Research Institute of Surveying and Mapping Beitaipinlu 16;Beijing;P.R.China
Jiang Zhiheng Research Institute of Surveying and Mapping Beitaipinlu 16;Beijing;P.R.China
..............page:14-21
zen yang shen qing guo jia zi ran ke xue ji jin qing nian ke xue ji jin guo jia ce hui ju ce hui ke xue ji shu fa zhan ji jin
peng yi zuo ;
peng yi zuo ;
..............page:46-48