Uhlolojikelele: Izimboni eziningi manje zisebenzisa izikhwama zamathani ukupakisha, futhi izimboni eziningi ziyabandakanyeka, njengokupakisha izikhwama ezinkulu kusimende, izimayini, izinto zokwakha, imboni yamakhemikhali, okusanhlamvu, umanyolo wamakhemikhali, okuphakelayo nezinye izimboni.Uhlu lwesisindo sokugcwalisa izikhwama ngobuningi ...
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