問題詳情
三、如示意圖，水平角為∠AOB = 60°，照準距離 OA = OB = 100 m。若定心誤差（OO' = γ）於角度平分方向上，其引起之角度觀測誤差（2δ）為 6"，則所對應的定心誤差應為多少？（20 分）
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