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Ungaqinisekisa kanjani i-vacuum degree yesithando somlilo?

Ungaqinisekisa kanjani i-vacuum degree isithando somlilo?

Inani ledigri ye-vacuum ngokuyinhloko lihlobene nezinga lokuphakama kwengcindezi yesithando somlilo kanye nekhwalithi yepompo, edinga ukugcinwa njalo nokususwa kokungcola endaweni. isithando somlilo.