【正文】 ...............4（三）水準點的布設(shè) ....................................................................................................... 5三、四等水準測量 ........................................................................................................................... 6（一）根本要求 ............................................................................................................... 6（二）觀測程序 ............................................................................................................... 6（三）限差 ....................................................................................................................... 6四、儀器的使用和檢驗 ................................................................................................................... 8（一）水準儀的構(gòu)造 ....................................................................................................... 8（二）水準儀應(yīng)滿足的幾何條件 ................................................................................... 9（三）水準儀的檢驗 ....................................................................................................... 9五、實例......................................................................................................................................... 10（一）測區(qū)概況 ............................................................................................................. 10（二）技術(shù)設(shè)計 ............................................................................................................. 10（三）作業(yè)方法 ............................................................................................................. 11（四）計算成果及評價 ................................................................................................. 13六、誤差來源及消除方法 ............................................................................................................. 15（一）儀器誤差 ............................................................................................................. 15（二）觀測誤差 ............................................................................................................. 15（三）外界條件的阻礙 ................................................................................................. 15完畢語 ............................................................................................................................................ 17參考文獻............................................................................................................