Ngokubanzi, ububanzi bombhobho bunokwahlulwa bube yi-diameter yangaphandle (De), i-diameter yangaphakathi (D), i-diameter eqhelekileyo (DN). Apha ngezantsi kukunika umahluko phakathi kwale mahluko “De, D, DN”. I-DN yi-diameter eqhelekileyo yombhobho Qaphela: Le ayisiyo ingaphandle...
Funda ngokugqithisileyo