Isikhokelo: Ukukhenkceza kwe-UV yendawo kunokuba ngokweemfuno zokubeka imveliso, uphawu lokuthengisa, ukupakishwa kunye nokushicilela kufuneka kuqaqambise iindawo zokubeka umkhenkce wendawo, iipateni zokukhenkceza xa kuthelekiswa neepateni ezijikelezileyo zibonakala ziqaqambile, ziqaqambile, zinembonakalo-ntathu, inokuvelisa. igcisa elikhethekileyo...
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