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水利部规划设计管理局于1980年12月10日至15日在天津市召开了航测大比例尺成图技术鉴定会。国家测绘总局、冶金部、铁道部、煤炭部、武汉测绘学院和同济大学等18个单位的32位代表参加了会议。会议的目的是对水利部天津勘测设计院、辽宁省水利勘测设计院、电力部成都勘测设计院和山西省电力勘测设计院等4个单位完成的8项航测大比例尺成图(比例尺分别为1:5,000、1:2,000和1:1,000)试验研究成果及其总结报告进行审议,并提出鉴定意见。
Ministry of Water Resources Planning and Design Authority in December 1980 December 15 to 15 in Tianjin held aerial mapping large scale mapping appraisal. 32 representatives from 18 units including the State Administration of Surveying and Mapping, the Ministry of Metallurgy, the Ministry of Railways, the Ministry of Coal Industry, Wuhan Institute of Surveying and Mapping and Tongji University attended the meeting. The purpose of the conference was to survey eight large-scale aerial survey maps of 4 units: Tianjin Survey and Design Institute of Ministry of Water Resources, Liaoning Provincial Water Conservancy Survey and Design Institute, Ministry of Electric Power Chengdu Survey and Design Institute and Shanxi Electric Power Survey and Design Institute (scale 1 : 5,000, 1, 2,000 and 1: 1,000) test results and the summary report for consideration, and make appraisal opinions.