Igumbi lokuVavanya iSitshizi seMvula eProgrammable Waterproof isetyenziselwa ukuvavanya ukusebenza kwemvula kunye nokungangeni kwamanzi kwiimveliso, iimveliso ezinje ngezibane ze-steam locomotive, ukusebenza kwe-wiper, iibhendi ezingangeni manzi, izixhobo zesithuthuthu, imboni yoKhuselo, iinkqubo zokuhamba, imijukujelwa, imijukujelwa ...
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