<prompt> Translate the following text to EnglishKwa muhtasari, wakati wa jumla unaohitajika kukamilisha muundo, usakinishaji, na majaribio katika kituo na kitengo kimoja cha SCR ni karibu miezi 21, na katika kituo na vitengo vingi vya SCR saa saba, wakati wa jumla ni karibu miezi 35.  <response>: In summary, the total time needed to complete the design, installation, and testing at a facility with one SCR unit is about 21 months; at a facility with multiple SCR seven units, total time is approximately 35 months. 