State Bureau of Surveying and Mapping.Research of General Stratagem of Establishing China Geo-spatial Frame [D].Beijing: State Bareau of Sarveijing and Mapping, 2002.

 
  • [2]国家测绘局.;构建数字中国地理空间基础框架总体战略研究[D]
今日热词
目录 附录 查词历史