摘要
引用两井定向中计算地面连接误差的公式 ,按贯通点两端导线末点实测值的精度 。
Quoting the formula of calculating the ground linkage error in two wells directional linking according to the precision of the actual surveying value at the end of the two holing-through leading line,calculate the approach-through error of tunnel holing-through direction.
出处
《煤炭技术》
CAS
2003年第11期96-98,共3页
Coal Technology
关键词
贯通测量
点位误差
精度
定向
holing-through survey
point error
precision
