烟气中的水蒸气含量较大时，计算过量空气系数应先将湿烟气含氧量修正为干烟气含氧量；
When the vapor content in gas is higher, the oxygen content of dry gas should be corrected to the oxygen content of damp gas before calculating the excess air coefficient.
在实验的基础上，分析了半干半湿法烟气脱硫技术的优点。
On the basis of experiment results, the benefits of semi dry FGD technology have been analyzed.
半干半湿烟气脱硫工艺特别适合我国中小型工业锅炉烟气脱硫的需要。
Semi dry FGD processes are especially suitable for the desulfurization of small and medium size industrial boilers in China.
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