In the process of well test, the manual methods, estimating method and interpolation by chart, are usually used to deal with surface data, which are tedious and have great errors.
油气井测试过程中，处理地面数据的常用方法是估计估算、查表插值的手工法，这种方法既繁琐且误差大。
In this paper, a kind of rational interpolation method is given. Its error estimate and recurrence algorithm are also obtained. Numerical test shows that the convergence of this method is good.
本文研究了二元有理插值逼近，给出一种逼近方法及该方法的递推算法、误差估计和实例。
A precipitation interpolation experiment is taken to test the model in Guxian drainage area. Guxian drainage area lies in down stream of Yellow river basin belong to a mountain area.
并以黄河故县以上集水区域为例，进行多年平均月降水插值实验。
Resulted in the adoption of the above surface fitting and linear interpolation can be other non-test state of the physical point, in order to get the necessary calculation of the engine heat data.
对上述结果通过曲面插值和线性拟合的办法可以得到其它非测试状态点下的物理量，从而得到发动机余热计算所需的数据。
Resulted in the adoption of the above surface fitting and linear interpolation can be other non-test state of the physical point, in order to get the necessary calculation of the engine heat data.
对上述结果通过曲面插值和线性拟合的办法可以得到其它非测试状态点下的物理量，从而得到发动机余热计算所需的数据。
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