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
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
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