<prompt> Translate the following text to SwahiliInstallation of the control device hookup on a sequential basis usually involves an overlap of compliance testing of FGD system on one unit with hookup of an FGD system with the next unit.  <response>: Usanidi wa kuunganisha kifaa cha kudhibiti kwa msingi wa mfululizo kwa kawaida unahusisha kuingiliana kwa upimaji wa kufuata wa mfumo wa FGD kwenye kitengo kimoja na kuunganisha mfumo wa FGD na kitengo kifuatacho. 