Khoom Nta Ntawm Cov Khau Khau Npog

Qhov loj tshaj plaws ntawm cov khau npog pov tseg yog tias nws yooj yim siv, thiab muaj ntau yam kev siv. Cov ntaub ntawv sib txawv muaj cov haujlwm sib txawv, xws li tiv thaiv kev sib tsoo, tiv thaiv zoo li qub, thiab plua plav pov thawj. Ntxiv mus, tus nqi yog pheej yig dua li cov khau uas tsis yog siv pov tseg, thiab kev tuav kuj yog yooj yim, tshwj xeeb tshaj yog cov khau tsis-woven npog, uas tuaj yeem raug degraded.