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        A Method to Assess Levelling Measurements
        A New Theorem of Projection and Its Application to Adjustment
        The Effect of Earth Tide on Astronomical Latitude and Longitude
        Cartographic Data Base System the Core Component of the Spatial Information System
        The Optimization Problem of Calibrating the Periodic Errors of Lacoste and Romberg Model “G” Gravity Meter
        On the Application of Pseudo-Weight
        A Study of the Basis for Determing the Quotas of Settlements Selected for Mapmaking
        Cartographic Representation of Sea Coasts on Topographic Maps at Large and Medium Scales
        An Optical Multi-Channel Correlation Technique
        The Analysis of Several Methods for Working Out the Differential Equations of a Particle Making Relative Motion
        New Computing Formulas for Measuring the Slope of a Shaft Well by Hydrostatic Level
        The Construction Method of Determining the Positions of the Principal Planes of Lens
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