1. Kev kuaj xim xim: tib yam khoom siv raw li cov cab kuj tau ntxiv rau hauv kev faib ua feem (1 feem pua lossis 2 feem pua), thiab 2.5 hli tuab nplooj ntawv yog tau los ntawm kev txhaj tshuaj molding ntawm qhov kub ntawm 170 degree -190 degree (nyob ntawm qhov cov ntaub ntawv sib txawv), thiab xim yog muab piv nrog cov qauv, thiab lub teeb xim tuaj yeem kuaj los ntawm colorimeter thaum lub sijhawm sib piv, thiab xim tsaus tuaj yeem muab piv thiab debugged raws li kev paub hauv lub teeb pom kev zoo.
2. Lub dispersion yog nias rau hauv ib zaj duab xis nyob rau tib qhov kev faib ua feem thiab qhov kub thiab txias, thiab cov xim ntawm cov xim yog pom.
