Isihlungi, ngomqondo ojwayelekile, idivayisi noma into esetshenziselwa ukuhlukanisa noma ukususa izakhi ezingafuneki entweni noma ekugelezeni. Izihlungi zivame ukusetshenziswa ezinhlelweni ezahlukahlukene, kufaka phakathi ukuhlanzwa komoya namanzi, amasistimu e-HVAC, izinjini zezimoto, nokunye okuningi. Esimweni sezinto zokuhlanza umoya, i...
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