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Analysis of Precision for the Precise Plumbing Instrument JDY-1
Author(s): 
Pages: 64-66
Year: Issue:  7
Journal:  Bulletin of Surveying and Mapping

Keyword:  对中 对点仪 对中误差;
Abstract: 提出一种对JDY-1型精密对点仪进行测试的方法,并分析测试结果,评定该型对点仪的实际对中精度。
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