<prompt> Translate the following text to EnglishKwa mfano, ACI, FGD, na SCR hazitakuwa muhimu kwa kitengo kimoja kwa sababu ya ufanisi wa juu wa kuondoa zebaki unatarajiwa kupitia mchanganyiko wa FGD na SCR.  <response>: It is assumed that the ACI, FGD, and SCR would not be necessary at a single unit because of the high mercury removal efficiencies expected through combination of FGD and SCR. 