本文对断面索法和经纬仪测角交会法的定位误差进行了较详细的推导和分析，并指明了减小定位误差的途径。
The positioning error for cableway and theodolite methods is derived and analyzed in detail and the methods for reducing positioning error are pointed out.
笔者提出从测角前方交会推演出测边解算前方交会的简便公式，方便可行，比较实用。
A simple formula of side-measured forward intersection is derived from angle-measured forward intersection, which is easy, feasible and practical.
为保证连测的像控点精度的可靠性，本文提出了按交会基线长度和交会图形强度，增加适当测回数，提高测角精度的方法。
To ensure the reliability of the precision of photograph control points by continual survey, a method is recommended that increases the appropriate numbers of the observation set and promotes …
为保证连测的像控点精度的可靠性，本文提出了按交会基线长度和交会图形强度，增加适当测回数，提高测角精度的方法。
To ensure the reliability of the precision of photograph control points by continual survey, a method is recommended that increases the appropriate numbers of the observation set and promotes …
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