堤坝下游减压井列的渗流计算，是一个十分复杂的三维空间流动问题。
It is well known that, the seepage flow problem of the partially penetrating relief well is complex.
本文研究了液芯轧制时三维空间中金属流动，着重地研究了液芯率对轧制的影响。
The three dimensional flow of metals during rolling of ingot with liquid core has been studied in the article. Here the influence of liquid core ratio on rolling was studied in particular.
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