Tsawg-substituted hydroxypropylmethylcellulose (L-HPMC) yog ntau yam, ntau yam polymer nrog kev siv ntau yam kev lag luam, suav nrog tshuaj, khoom noj, kev tsim kho, thiab tshuaj pleev ib ce. Cov tshuaj no yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa. To taub l...
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