结果表明：逆流操作的净化效率高于顺流，气(液)体流量对出、进口气(液)体温差有较大影响。
The result shows that the purification efficiency is higher under counter current operation than that under co-current operation.
在相同工况下，逆流时对数平均温差最大，顺流时最小，混合流型介于二者之问。
Under the same conditions, when the logarithmic mean temperature difference between upstream maximum downstream, the smallest of the mixed flow pattern between the two asked.
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