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由河海大学工程勘测系教师汤叔楩,李冬田研制的坐标量测仪已获中国国家专利局批准,专利号为:86210121。这种坐标量测仪主要用于近景摄影地质测量单像片的坐标测定和其他较高精度图片坐标的确定。现有可用来进行近景摄影的坐标仪其结构复杂,价格昂贵、不便携带,因此,一般不用于单像片量测,野外地质队更是不愿配备。
The coordinate measuring instrument developed by the teachers of engineering survey department of Hohai University, Tang Shui and Li Dongtian has been approved by China National Patent Office with the patent number of 86210121. This coordinate measuring instrument is mainly used for the close-range photographic geodetic single coordinate measuring and other high-precision image coordinates to determine. The existing available for close-range photography of the coordinate system of its complex structure, expensive, inconvenient to carry, therefore, generally not used for single-image measurement, field geology team is reluctant to equipped.