设A为前视点,B为后视点,当后视黑面读数a1=0.×957m,红面读数a2=5.×647m,前视黑面读数b1=1.×857m,红面读数b2=6.645m,则A、B的高差为:。


设A为前视点,B为后视点,当后视黑面读数a1=0.×957m,红面读数a2=5.×647m,前视黑面读数b1=1.×857m,红面读数b2=6.645m,则A、B的高差为:。

正确答案:HA=69.6735m


Tag:数学地形测量学 读数 黑面 时间:2024-02-08 10:52:05