在监测中心对用户的位置数据进行差分修正，给出与伪距修正同样的高精度用户位置数据。
The monitoring center differentially corrects the user's position data and gives the user's position with high precision just like pseudo range differential GPS system dose.
对有限元和有限差分的数值计算提出了井孔奇点修正和以沟代井列的计算方法，从而提高了离散化网络的计算精度，并可简化取代三维问题为二维。
The method for correction of singular points of wells and the calculation method of well row replaced by a ditch in the numerical FEM and FDM computations were proposed in this paper.
对有限元和有限差分的数值计算提出了井孔奇点修正和以沟代井列的计算方法，从而提高了离散化网络的计算精度，并可简化取代三维问题为二维。
The method for correction of singular points of wells and the calculation method of well row replaced by a ditch in the numerical FEM and FDM computations were proposed in this paper.
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