给系统误差适当约束，即可求解出各测线的系统误差。分别校正系统误差和随机误差，便完成闭合差校正。
The averaging procedure is therefore unsuitable for correction and systematic error on each line has to be separately computed.
给系统误差适当约束，即可求解出各测线的系统误差。分别校正系统误差和随机误差，便完成闭合差校正。
The averaging procedure is therefore unsuitable for correction and systematic error on each line has to be separately computed.
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