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三門峽水庫區航空摄影测量工作,已經在10月底開始。这个工作是林業部調查局航空攝影测量隊,在黄河設計院、中央气象局、黄河三門峽工程局等單位配合下進行的。测區东起硖石,西至西安,南至秦嶺,北至禹門口,共計面積三千五百多平方公里。从9月中旬開始,在一个月中,黄河設計院的工作人员,在测區完成了地面三角控制工作。中央气象局也在10月下旬完成了測區建站和其他准备工作。目前
Sanmenxia reservoir area aerial photogrammetry work has begun in late October. This work is the Bureau of Investigation Bureau of Aviation Aviation Photogrammetry team, with the Yellow River Design Institute, the Central Meteorological Bureau, the Yellow River Sanmenxia Engineering Bureau and other units under the cooperation. Zhashi stone east of the test area, west of Xi’an, Qinling Ridge to the south, Yumenkou north, a total area of more than 3500 square kilometers. Starting from mid-September, in a month, staff from the Yellow River Design Institute completed ground triangulation control work in the survey area. The Central Weather Bureau also completed the construction of measuring stations and other preparatory work in late October. Currently