共 3 条
[1]
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[2]
Study on Monitoring Dam Deformation with GPS Positioning. LI Zheng-hang,LIU Zhi-zhao,WANG Ze-min. Journal of Wuhan University of Hydraulic and Electric Engineering . 1996
[3]
Performing Submillimeter Level Positioning on Short Baselines with GPS. LI Zheng-hang,WANG Ze-min,LIU Zhi-zhao,et al. Journal of Wuhan Technical University of Surveying and Mapping, 1998, 23(supplement) .