Kuonetsetsa chitetezo ndi magwiridwe antchito, mafakitale amadalira kwambiri makina owotcherera.Makinawa amagwira ntchito yofunika kwambiri m'magawo osiyanasiyana monga kupanga, kumanga, ndi magalimoto.Kuonetsetsa kuti ntchito zikuyenda bwino, kukonza makina owotcherera pafupipafupi kuyenera kukhala patsogolo ....
Werengani zambiri