Kev tsim qauv ntawm cov luam yeeb hom khib no tsom rau kev kho qhov chaw, feem ntau yog los ntawm kev tsim kho kom zoo nkauj sab hauv mus rau sab hauv cov txee zaub tsim, thiab cov teeb meem kev nyab xeeb yuav siab dua, cov zaub lag luam cov khoom siv ntau ntxiv muaj ntau yam, thiab cov luam yeeb hauv tsev khib yuav kim dua hauv kev tsim Tus qauv luam yeeb ua luam yeeb racks hauv khw muag khoom tshwj xeeb yog qhov siab dua, uas yog qhov tseeb tseem cuam tshuam rau cov neeg siv xav tau.
Cov zaub khib nyiab yog siv dav hauv cov khoom siv hluav taws xob, khoom siv hluav taws xob, khoom siv tes ua khoom plig, khoom lag luam siv lead ua, cov khoom lag luam yas, cov chaw tsim khoom lag luam chaw tso khoom, tuam txhab lag luam txawv teb chaws coj mus kuaj qauv, thiab lwm yam. nrog ntau yam qauv yuav ua rau cov khoom muag ci ntau dua. Lub xov tooj txawb zaub muag zaub tau nyiam cov xim ntawm feem coob ntawm cov neeg siv khoom thiab lub qhov muag ntsuab.
