水准联测点分布不合理，使某些拟合点的外推距离太大，导致外推点的精度太差。
The unreasonably distributed GPS leveling points make some GPS points have too big extrapolated distance, which causes the extrapolated points have too low accuracy.
水准联测点分布不合理，使某些拟合点的外推距离太大，导致外推点的精度太差。
The unreasonably distributed GPS leveling points make some GPS points have too big extrapolated distance, which causes the extrapolated points have too low accuracy.
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