Ekutyeni, kwiikhemikhali zemihla ngemihla, kwiziselo, kwizinto zokuthambisa nakwezinye izixhobo zokupakisha zanamhlanje, umatshini wokufaka iilebheli ngokuzenzekelayo udlala indima ebalulekileyo. Xa kuthelekiswa nokufaka iilebheli ngesandla, inkangeleko yawo yenza isantya sokufaka iilebheli kwiphakheji yemveliso sibe kwinqanaba eliphezulu. Nangona kunjalo, ezinye iilebhu...
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