Peb tuaj yeem ua ntau yam duab raws li koj qhov kev xav tau, xws li loj ib leeg thiab obquartzda dej rau me mequartzcrucibles. Ntxiv rauquartz cov ntaub ntawv, peb kuj tuaj yeem ua cov ntim khoom ua los ntawm cov iav tawv.
· Siv rau wafer ntub tu txheej txheem.
· Ib qhov qhib / ob qhov (qhov hla dhau).
· Muaj peev xwm tsim tau txog 12 ntiv tes.
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