Dab tsi yog qhov xwm txheej ntawm Hydroxyethyl Methyl Cellulose Hydroxyethyl Methyl Cellulose (HEMC) yog cellulose ether derivative, zoo ib yam li Hydroxypropyl Methylcellulose (HPMC), nrog cov khoom tshwj xeeb muab tau los ntawm nws cov qauv tshuaj. Ntawm no yog cov ntsiab lus ntawm qhov xwm ntawm Hydroxyethyl Methyl Cell ...
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