1. Ho ea ka mekhoa ea ho ntša likhoerekhoere, matloana a arotsoe haholo ka mefuta e mene: Mofuta oa Flush, mofuta oa siphon flush, mofuta oa jet siphon, le mofuta oa siphon vortex.(1) Ntloana ea ho hlatsoa metsi: Ntloana ea ho hlatsoa metsi ke mokhoa o tloaelehileng ka ho fetesisa oa ho ntša likhoerekhoere ka har'a matloana a mahareng ho ea tlase Chaena.Molao-motheo oa eona ke ho sebelisa matla a ...
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