<prompt> Translate the following text to EnglishUjenzi wa chuma na uchimbaji mdogo na kazi ya saruji ni muhimu kwa mfumo wa ACI, na kazi hii haipaswi kuhitaji zaidi ya vifaa vya ujenzi vya kawaida.  <response>: Steel erection and minor excavation and concrete work is necessary for an ACI system, and this work should not require any more than very common construction equipment. 