<prompt> Translate the following text to SwahiliFGD systems are installed on the back end of a facility, are usually built close to the ground, and do not require the amounts of structural steel generally associated with elevated installations such as SCR.  <response>: FGDs ni vifaa vya ujenzi vya chuma vya ujenzi, ambavyo kwa kawaida hutengenezwa karibu na ardhi, na hazihitaji kiasi cha chuma cha ujenzi kinachohusiana na vifaa vya juu kama vile SCR. 