Mechini e meholo e roalang likhoele ke mochini o etsang mesebetsi e mengata o batang oa ho roala le ho etsa mochini, ka har'a sebaka sa eona sa khatello, o khona ho theola likhoele, likhoele tse otlolohileng le tsa helical holim'a lisebelisoa tse batang. Ho roala lisebelisoa tse otlolohileng, tsa helical le helical spline; ho otlolla, ho fokotsa, ho thetheha le tsohle k...
Bala haholoanyane