1. Hnov tsw ntxhiab, tsis txhob' tsis txhob ntsiag to ze, thiab ua rau koj txhais tes me ntsis. Cov xim zoo nkauj ib puag ncig ib puag ncig tiag tiag yuav tsum yog dej raws, tsis muaj tshuaj lom thiab tsis qab, thiab yuav tsum muaj ntxhiab tsw ntxhiab ntawm emulsion. Nws tsis yog qhov kev xaiv zoo tshaj yog tias nws muaj ntxhiab tsw ntxhiab;
2. Saib saum npoo ntawm cov xim pleev xim. Cov xim pleev xim nrog cov hnub ntev yuav muaj txheej ntawm emulsion rau saum npoo, thaum lub sijhawm ze dua yuav nyob rau hauv lub xeev ntawm kev sib xyaw hauv dej thiab mis. Qhov ntev ntawm hnub tuaj yeem txiav txim siab raws li hnub tim ntawm daim ntawv pov thawj. Nws yog ib qho tseem ceeb. Ib puag ncig zoo xim pleev xim yuav muaj cov tuab oxide zaj duab xis nyob saum npoo
3. Siv daim ntawv nyuaj los txhuam cov xim pleev xim, thiab tom qab ntawd muab nws txhuam. Thaum cov xim pleev xim zoo zoo ntws los, nws yuav dhau los ua tus kiv cua;
4. Cov xim pleev xim me ntsis tuaj yeem txhuam ntawm cov phab ntsa xis mas. Tom qab txheej txheej qhuav, so nws nrog daim ntaub ntub. Cov xim pleev xim tiag tiag yog tiv taus txhuam. Ib lossis ob puas zaug yuav tsis muaj qhov cuam tshuam loj rau qhov tsos ntawm txheej, thiab nws yog qhov tseeb Cov xim yog ci thiab zoo nkauj.
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