oblique datum correction 斜基准面校正

variable velocity datum correction 变速基准面校正

relocatable datum correction 浮动基准面校正

wave equation datum correction 波动方程基准面校正

upward wave equation datum correction 波动方程向上基准面校正

datum static correction [地物] 基准面静校正

Well Log Datum Velocity Correction 井曲线基准面校正

datum line correction 基线修正

correction for datum 基准改正