Yas yas, raws li lub npe qhia, yog yas raw khoom, uas yog heev convebient rau txheej txheem. Noj cov hnab yas ua piv txwv, nws yog ib tug txheej txheem hu ua zaj duab xis tshuab zoo li tshuab npuas.Lub thickness yuav ua tau kaum ob ntawm microns, uas yog sib npaug rau lub diament ntawm cov plaub hau, tab sis nws muaj peev xwm tiv taus ntau kilograms ntawm zaub thiab txiv hmab txiv ntoo.Tsis txhob hais txog tus nqi qis yog tsawg tshaj li ob peb xees.Nws nyuaj rau nrhiav tau ib yam dab tsi uas muaj txiaj ntsig thiab pheej yig ntawm qib no.
Kev daws qhov teeb meem ntawm cov pa phem dawb los ntawm cov yas feem ntau yog nyob ntawm kev faib cov khib nyiab thiab rov ua dua tshiab.Qhov tseeb, yas yog cov khoom siv rov ua dua tshiab.Feem ntau cov yas tuaj yeem ua kom sov thiab yaj thiab rov ua dua tshiab rau hauv cov khoom tshiab. Tsis tas li ntawd, muaj ntau cov yas uas degradable, xws li polylactic acid plastics, tab sis qhov teeb meem tseem ceeb tam sim no yog tias cov no kim dhau, yog li lawv tsis tau ntes.
