Ib puag ncig ntsuas ntsuas
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DRK645 UV Teeb Kev Ntsuas Huab cua tiv thaiv lub thawv
DRK645 UV teeb huab cua tsis kam kuaj lub thawv yog simulate UV hluav taws xob, siv los txiav txim siab qhov cuam tshuam ntawm UV hluav taws xob ntawm cov khoom siv thiab cov khoom siv (tshwj xeeb yog cov kev hloov pauv ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob).
