Nkag siab R - Tus nqi ntawm insulated iav qhia txog r - tus nqi yog ib lub ntsiab lus tseem ceeb zaus yog lub archeting thiab archulation thaum tham txog thermal rwb thaiv tsev. Nws sawv cev lub peev xwm ntawm ib daim lev
Cov khoom tau pom tau dav tau lees paub los ntawm cov thawj coj ntawm peb lub tuam txhab, uas tau daws teeb meem zoo heev lub tuam txhab cov teeb meem thiab txhim kho lub tuam txhab ua tiav kev ua tiav. Peb txaus siab heev!