Isu lokulawula ikhwalithi labahlinzeki be-valve yesheke baseChina: ukulawula okuvela emthonjeni nokulolonga imodeli yemboni
Ngokuthuthuka okusheshayo komnotho waseChina, isidingo samavalvu okuhlola emkhakheni wezimboni nawo siyakhula. Njengedivaysi yokuvimbela ukugeleza kwamanzi, ama-valve okuhlola asetshenziswa kabanzi ezimbonini ezihlukahlukene, njenge-petroleum, amakhemikhali, amandla kagesi, insimbi ...
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