Isango leZikhukula kwizikhululo zeMetro

Inkcazelo emfutshane:

Umqobo wethu we-hydrodynamic ozenzekelayo wesikhukula ulungele indawo ephantsi komhlaba edolophini (kubandakanya ulwakhiwo oluphantsi komhlaba, igaraji engaphantsi komhlaba, isikhululo sikaloliwe, indawo yokuthenga ephantsi komhlaba, indawo yokungena yesitrato kunye negalari yombhobho ongaphantsi komhlaba, njl.njl.) kunye nokungena kunye nokuphuma kwezakhiwo ezisezantsi okanye iindawo ezisemhlabeni, kunye nokungena kunye nokuphuma kwezitishi kunye namagumbi okusasaza, anokuthi aphephe ngokufanelekileyo ukuba ubunjineli obuphantsi komhlaba bukhukuliswe emva kobunjineli bemvula.