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What is the average annual temperature difference among provinces in China?

Logarithmic average temperature difference Logarithmic average temperature difference Because the temperature changes in a series of heat exchangers with condensation plates, a relatively accurate value is obtained for our better selection and calculation, when △ t1△ t2 > Use the formula: △ tm = (△ t1-△ t2) ㏑ (△ t1△ t2). If △ t1△ t2 ≤1.7, △ TM.

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