umkhuhlane omphumeleleni okanye amaphetha
Izintaba ezinethi ngezindlela zihleke amandla kwezindaba zokugcina ngokulungileyo kwiindlela yokuthumela amafu. Izintaba ezinethi ezinhloko zizifakwa ngemvume othisha okufanelela ukusetyenziswa kwezindlela, lokhu kuhlanganisa ukusetshenziswa kwesiqephu, ukuze kubekwe umphathelentombini omkhulu oluninzi lapho luhlala. Umvume wokuqeqeshwa lwavela ukusebenzisa isibhokisi somfula esisetshekiweyo kunye nokuphiwa ngendlela eyahlukileyo ukuba kuzimele izinsuzwano ezidingezayo. Lomvume lihlukileyo lokusebenza ligcinikeleya amandla amahhade nekuphawulekelayo ngaphezulu kwezinye izindlela ezisetshenziswa ngesiqephu. Izintaba ezinethi zikhetha amakhono okubanzi kwindawo ezingaphambili, phakathi kwezindlela zakhothi nezimpahla, ipetrokemikali, ukugcina nokusebenziswa. Ukuphawulwa kakhulu kwabo kuhlanganisa abantu ababili abangene ukuthi babekho amandla nokuphawula kakhulu ngaphandle kokuthi amasimu akhonzisekise, futhi bayehlukileyo ngokuthi bengakwazi ukusuka ngokubhekisele kanye nokuthi bengakwazi ukusuka ngokubhekisele kwiindlela ezinethi ezithileyo okanye ezinethi zimncedisiweyo. Okungakho inqanawa yezigxabi ezinethi zingacabanga ukuthi zingaziphatheka ngokubhekisele, ngaphezulu kwiindlela ezinethi ezithileyo okanye ezinethi ezincedisiweyo. Le ndawo ifanele kwiimbali engaphezulu, phakathi kwekhaboni steele, isteeli esisishova kanye nokhaboni steele, uzokususa ukwenza imilayezo yezindawo ezidingezayo. Ukuphawulwa kodwa kanye nokuphindekelwa kakhuli kwezintaba ezinethi ngenxa yalokho kuzimelela ukuthola indlela yokuthumela amafu efanele, lokhu kuhlelwa ukuba kuzimelela ukuthi kube ngokuthi kuhle kwiindlela yokusebenza okuningi.
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