For a general case of three dimensional bounded region, we put forward a kind of fractional step characteristic difference schemes.
在考虑三维有界区域的一般情况下，提出了一类分数步长特征差分格式。
For a general case of three dimensional bounded region, we put forward a kind of fractional step characteristic difference schemes.
在考虑三维有界区域的一般情况下，提出了一类分数步长特征差分格式。
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