Cov khoom siv ntawm cov iav feem ntau yog silicon dioxide.Ordinary iav yog calcium silicon iav.Qhov zoo dua yog siab borosilica, uas yog lub thiaj li hu ua tawv iav.
Ordinary wide-qhov ncauj iav yog calcium silicon iav.Txhawm rau ceeb toom koj, cov ntsiab lus coj peb feem ntau txhawj xeeb txog nyob ntawm no.Vim tias pheej yig calcium silicon iav, cov nqi tsim khoom tsawg, cov ntsiab lus ntawm cov hlau lead hauv nruab nrab tsis tuaj yeem ua haujlwm zoo.ib zaug.
Qee cov iav qib siab yog siab borosilica.Lub siab borosilicon yuav luag tsis ua tiav, thiab cov khoom siv tes ua haujlwm tshwj xeeb yog qhov nyuaj, yog li nws kim dua.
Lub sij hawm xa tuaj: Plaub Hlis-18-2023