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为了提高勘测设计质量、充分发挥航测技术的作用,中国铁路工程总公司于1989年7月25日～27日在北京召开了“利用航测技术进行新旧线勘测座谈会”。会议由中国铁路工程总公司主持,第一、二、三、四设计院、专业设计院和北京铁路局勘测设计院等单位的有关领导和线路、地质、桥梁、站场、房建、给排水、信号、航测等八个专业有经验的专业人员共34人参加了会议。会议着重讨论了“铁路航空勘测(摄影测量与遥感)在改建现有线及增建第二线工程勘测中的应用”和“利用国家已有航摄资料编绘铁路大比例尺地形图”等内容。会上
In order to improve the quality of survey and design and give full play to the role of aerial survey technology, China Railway Engineering Corporation held “Symposium on Survey of New and Old Lines Using Aerial Survey Technology” in Beijing from July 25 to July 27, 1989. The meeting was chaired by China Railway Engineering Corporation. The leaders, lines, geology, bridges, stations, buildings, water supply and drainage in the first, second, third and fourth design institutes, professional design institutes and survey and design institutes of Beijing Railway Administration , Signal, aerial survey and other eight professional and experienced professionals a total of 34 people attended the meeting. The meeting focused on “the application of railway aerial survey (photogrammetry and remote sensing) in reconstructing the existing line and the survey of the second line of construction of the additional line” and “compiling the large scale topographic map of the railway using aerial photographing data of the state”. At the meeting