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什么是直线定线,钢尺量距前如何用经纬仪进行直线定线?

问答题
2022-04-02 13:27
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正确答案
当两个地面点之间的距离较长或地势起伏较大时,为方便量距工作,需要分成若干尺段进行丈量,就需要在两点直线上定出若干个分段点,这项工作称为直线定线。 当直线定线精度要求较高时,要用经纬仪定线,方法如下:在直线的一个端点安置经纬仪,瞄准另一个端点,制动照准部,然后将望远镜向下俯视,在整尺段的地方打下木桩,用十字丝交点即可在桩头上定出分段点。同理可定出其他分段点。

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