Hauv thawj ib nrab ntawm lub xyoo, kev lag luam acetone hauv tsev tau nce ua ntej thiab tom qab ntawd poob. Hauv thawj peb lub hlis twg, kev xa khoom ntawm acetone tsis tshua muaj, cov cuab yeej siv tau zoo, thiab cov nqi lag luam tau nruj. Tab sis txij li lub Tsib Hlis, cov khoom lag luam feem ntau tau poob qis, thiab kev lag luam hauv qab thiab qhov kawg tau bee ...
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