Isicelo yenzelwe ukuphefumula umzimba usebenzisa umsebenzi "ukuphefumula Quadratic", "okumelwe uphefumule Triangular" futhi "ngisho ukuphefumula."
Lezi umzimba zikuvumela ukuba abuyisele elilungile kwemisipha ukungezwani, ukusiza ukuba ubhekane nokucindezeleka, uthukuthele, ukhathazekile, ukwesaba nolaka.
Ngaphezu kwalokho, basebenzisa khulula-abatshuzi (abantu diving ngaphandle scuba gear) ukwandisa isikhathi kokulibala ukuphefumula.
Setha ntofontofo ugqozi ngezikhathi, umoya kanye ukubambezeleka ukuphefumula 5 - 10 imizuzu.
No ukukhangisa.
Kubuyekezwe ngo-
Feb 4, 2022