Everything in algebra was boring extrapolation after that, including the quadratic equation, which I have never used in my life.

以后代数中的种种推论都很枯燥，包括二次方程序，我这辈子从未用过它。

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As the most physical of the shot-profile wave equation pre-stack depth migration involving huge extrapolation calculation, the calculation is extremely time-consuming and less efficient.

作为最具物理性的共炮点道集的波动方程叠前深度偏移，涉及庞大的波场外推计算量，计算极其耗时，效率较低。

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We adopt two kinds of different mesh refinement process combining extrapolation of difference solution for more accurately solving tokamak plasma equilibrium equation.

利用两种不同的网格精细化方法与差分方程解的外推过程相结合，能更精确地求解等离子体平衡方程。

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