【摘要】 探讨了北京市政务电子地形图的技术规格,取舍标准的制定,设计的工艺流程,生产的技术方法。提出了涉密处理改进方法。更多还原

【Abstract】 It is introduced the technical specification,the accepting or rejecting standard,the work flow and the producing methods of Beijing government affair E-map.Based on this,the improved processing method for secret area is presented.更多还原