为了保证采集的结构面样本数量足够多，同时又使测量工作量最省，测线法应用时首先需要确定一个能够保证测量精度的最小测线长度——最佳测线长度。
To ensure the quantity of collected joint samples enough, and at the same time, to save surveying workload, the optimum scan line length should be determined first of all.
在两条基线相交成直角的情况下，如果两条基线长度相等，则测最精度与基线的方位角无关；
When one baseline is kept to be perpendicular to another, if their lengths are equal, the accuracy does not vary with their azimuths;
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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