Vim li cas qhov ntsuas dej thiaj li tsim nyog rau cov khoom siv yas granule?

Kev muaj cov dej noo hauv cov yas feem ntau muaj kev cuam tshuam rau lawv cov khoom thiab cov txheej txheem molding. Tsis tas li ntawd, dej vaporizes ntawm qhov kub thiab txias, ua rau muaj qhov tsis xws luag hauv cov khoom xws li npuas, ejection marks, thiab silvery streaks ntawm qhov chaw. Yog li ntawd, cov ntsiab lus noo noo hauv cov yas yog qhov tseem ceeb cuam tshuam rau kev ua cov thev naus laus zis, cov khoom zoo li, thiab cov yam ntxwv ntawm cov khoom. Nws yuav tsum tau saib xyuas raws li.