A、<span style=";font-family:Tahoma;font-size:15px"> </span><span style=";font-family:微软雅黑;font-size:15px"><span style="font-family:微软雅黑">视差未消除</span></span></p><p></p>
B、<span style=";font-family:微软雅黑;font-size:15px"><span style="font-family:微软雅黑">水准尺未竖直;</span></span></p><p></p>
C、<span style=";font-family:微软雅黑;font-size:15px"><span style="font-family:微软雅黑">估读毫米数不准;</span></span><span style=";font-family:Tahoma;font-size:15px"> </span></p><p></p>
D、<span style=";font-family:微软雅黑;font-size:15px"><span style="font-family:微软雅黑">地球曲率和大气折光;</span></span></p><p></p>
E、<span style=";font-family:微软雅黑;font-size:15px"><span style="font-family:微软雅黑">阳光照射和风力太大</span></span>
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