Lub thermal qhib sib koom ua ke yog ib tug kais tsuag dej teeb hauv qab cov xwm txheej ntawm cov teeb meem hauv qab qab nthab.Los ntawm kev sib cais cov dej num ntawm qhov kev hnov lus thiab cov tshuaj tsuag ntawm lub qhov dej kaw, qhov hluav taws kub tuaj yeem hnov zoo thiab tua txawm tias muaj teeb meem nyob ze ntawm lub qab nthab.