Ulwakhiwo kunye nezinto ezisetyenziswa yipayipi yokukhupha amanzi: Ipayipi yokukhupha amanzi yenziwe ngerabha, ilaphu kunye nezinto ezifakwayo kuzo zombini iziphelo. Ineempawu zokuxhathisa uxinzelelo, ukuxhathisa ukutsalwa, ukuxhathisa ukuguguleka, ukutywinwa kwe-elastic, ukufunxwa komothuko, kunye nokuxhathisa ukwaluphala, ngakumbi...
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