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1. Mtundu woyambira wa HPMC Hypromellose, dzina la Chingerezi hydroxypropyl methylcellulose, lotchedwanso HPMC. Fomula yake ya molekyulu ndi C8H15O8-(C10Hl8O6)n-C8Hl5O8, ndipo kulemera kwa molekyulu ndi pafupifupi 86,000. Chogulitsachi ndi chinthu chopangidwa pang'ono, chomwe ndi gawo la gulu la methyl komanso gawo la polyhydrox...Werengani zambiri»
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Hydroxypropyl methyl cellulose, yomwe imafupikitsidwa kuti cellulose [HPMC], imapangidwa ndi cellulose ya thonje yoyera kwambiri ngati zinthu zopangira, ndipo imakonzedwa ndi etherification yapadera pansi pa mikhalidwe ya alkaline. Njira yonseyi imamalizidwa motsogozedwa ndi makina ndipo ilibe zosakaniza zilizonse zogwira ntchito monga...Werengani zambiri»
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1 Chiyambi China yakhala ikugulitsa matope osakaniza kale kwa zaka zoposa 20. Makamaka m'zaka zaposachedwa, madipatimenti aboma oyenerera a dziko lonse aika patsogolo kwambiri chitukuko cha matope osakaniza kale ndipo apereka mfundo zolimbikitsa. Pakadali pano, pali madera opitilira 10 omwe...Werengani zambiri»