Amapayipi ayizinto ezidingekayo kumaphrojekthi wokwakha, futhi avame ukusetshenziswa amapayipi okuhambisa amanzi, amapayipi amanzi, amapayipi egesi, amapayipi okufudumeza, amapayipi ocingo, amapayipi amanzi emvula, njll. Ngokuthuthuka kwesayensi nobuchwepheshe, amapayipi asetshenziswa ekuhlobiseni kwasekhaya nawo ahlangene. intuthuko...
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