DRK - K646 tsis siv neeg digestion apparatus yog tshuaj ntsuam xyuas ntawm cov cuab yeej ua ntej, muaj qhov zoo ntawm kev ceev, zoo, yooj yim, feem ntau yog siv hauv zaub mov, tshuaj, kev ua liaj ua teb, hav zoov, kev tiv thaiv ib puag ncig, tshuaj lom neeg kev lag luam, biochemical kev lag luam, thiab lwm yam, nrog rau cov koom haum ntawm ...
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