Ukubonisa umlingani
Ukugcina okungakwazi ukuphucula isitsha esingakwazi ukuphucula (Ukuphucula okungakwazi ukuphucula isitsha esingakwazi ukuphucula) kubhulonzi, isitsha, isibhakela esiphucuzekile njengendlela yokuqala, ukuthiweleka kwezinyanga ezithile ngokusebenzisa umshini wokuphucula okuphucuzekile kanye nezifayela ezisungulwe kubhulonzi lokuphucula.