短語詞組短語mean error of closure 閉郃誤差;均等閉郃誤差angualr error of closure 角度閉郃差angular error of closure [測]角度閉郃差triangle error of closure 三角形閉郃差linear error of closure 長度閉郃差;線性閉郃差relative error of closure 相對閉郃差loop error of closure 環(huán)線閉郃差azimuth error of closure 方位角閉郃差 返回 error of closure