Then the new function space is introduced and the stability problem for the finite difference scheme is discussed by means of variational approximation method in this function space.

然后引入新的函数空间，并在这个空间上，采用变分近似法讨论了该格式的稳定性问题。

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Each object is represented by a function of time in the new space.

每一个对象是代表时间的函数，在新的空间。

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The interior wall was preserved while a few new function boxes were inserted into the lofty space.

内墙被保留下来，而较高的空间又加入了一些新的功能。

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