Positive pressure chipolopolo mtundu ma motors kuphulika-umboni nthawi zambiri ntchito m'madera ndi zoopsa kuphulika, monga makampani petrochemical, migodi malasha, fumbi chilengedwe, etc. Ntchito yaikulu ya chipangizo purge ndi kuletsa kuphulika kwa mpweya kapena fumbi kuwunjikana mkati galimoto nyumba. , ndi...
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