Txawm hais tias ob qho tib si sieves thiab mesh cov ntxaij vab tshaus yog net-zoo li cov ntaub ntawv, lawv txawv heev hauv kev txhais, daim ntawv thov, thiab cov yam ntxwv. Sieves, woven los ntawm cov ntaub ntawv xws li hlau thiab hlau, tuaj nyob rau hauv ntau yam duab thiab feem ntau yog siv rau kev tshuaj ntsuam granular cov ntaub ntawv xws li minerals thiab zaub mov. Lawv cov qauv kev sib txawv weaving ua tau raws li kev tshuaj xyuas kev xav tau ntawm cov teb sib txawv. Mesh cov ntxaij vab tshaus, ntawm qhov tod tes, yog woven los ntawm cov hlau xaim lossis hluavtaws fibers thiab feem ntau siv hauv kev luam ntawv thiab pom. Lub mesh suav ntawm ib qho screen txiav txim siab nws txoj kab ceev, muab nws qhov tshwj xeeb zoo hauv kev siv xws li luam ntawv Circuit Court boards thiab cov ntawv tshaj tawm. Mesh cov ntxaij vab tshaus tseem ua lub luag haujlwm tseem ceeb hauv kev pom, xws li hauv kev kho dej thiab kev pom huab cua.
Hais txog cov ntaub ntawv, sieves feem ntau siv hlau, thaum cov ntxaij vab tshaus mesh muaj ntau yam, siv cov hlau los yog hluavtaws fibers. Nyob rau hauv cov nqe lus ntawm daim ntawv thov, sieves tsom rau kev tshuaj ntsuam, thaum mesh cov ntxaij vab tshaus yog siv rau luam ntawv thiab pom. Tsis tas li ntawd, sieves muaj ntau hom kev sib txawv, thaum cov ntxaij vab tshaus mesh sib txawv los ntawm lawv cov mesh suav. Yog li ntawd, nyob rau hauv kev siv tswv yim, peb yuav tsum xaiv qhov tsim nyog net -zoo li cov khoom raws li cov kev xav tau tshwj xeeb los xyuas kom meej cov khoom tsim tau thiab cov khoom zoo.
