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2010年2月,《集邮博览》介绍了“胶东一届参议会纪念免资信封”此封由山东省战时邮务总局胶东区战时邮务管理局发行,由于当时战争......
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国防科工委司令部通信部于2月22日～26日召开了1993年通信工作会议,来自科工委各基地通信处(科)、通信总站(站)、委属院校及直属所等......
为了加强技术队伍建设,提高广大科技人员分析问题、解决问题的能力,总结交流在科技方面的研究成果,活跃学术气氛,促进科技工作不断......
