Ukusebenzisa isimiso sokuhwamuka okuqondile kanye nokupholisa kwamanzi, njengoba kuboniswe kuMfanekiso 1, ngokusebenzisa isiphephetha-moya ukudweba umoya, ukucindezela okungekuhle kukhiqizwa emshinini, umoya udlula endaweni emanzi, futhi iphampu yamanzi ihambisa amanzi emanzini. ipayipi lokusabalalisa kuphedi elimanzi, kanye ne-wat...
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