Bearings, monga gawo lofunika kwambiri la mankhwala a mafakitale, amatha kuwonedwa paliponse pafupifupi pafupifupi mbali iliyonse ya moyo, kaya ndi njanji yothamanga kwambiri, ndege ndi magalimoto ena akuluakulu, kapena makompyuta, magalimoto ndi zinthu zina zomwe zingathe kuwonedwa kulikonse m'moyo, ziyenera kugwiritsidwa ntchito popanga. ...
Werengani zambiri