万数据库的建立与更新的英文

establishing and updating the national-wide 1:250 scale topographic database in china

• 万:    ten thousand
• 数据库:    data bank; data ba ...
• 的:    4次方是 The fourth po ...
• 建立:    build; set up; est ...
• 与:    take part in; part ...
• 更新:    renew; replace; re ...