3. Thaum cov nqi me me ntawm cov khoom no nkag, nws yuav tsum nqus los ntawm cov xuab zeb lossis lwm yam adsorbents uas tsis yog-txhuam, thiab muab tso rau hauv cov ntim uas haum thiab raug khij rau cov khoom pov tseg kom pov tseg. Yog tias muaj qhov ntau ntawm cov dej xau, nqus nws nrog cov khoom siv nrog nqus dej kom zoo, nyob ib puag ncig, khaws cia rau hauv lub thoob lossis khawb qhov, thiab hloov cov khoom seem mus rau qhov tshwj xeeb uas yuav siv mus pov tseg.
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