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Vdink ntse board demo sib tham sib vaj huam sib luag ntse whiteboard rau kev lag luam

 Sib tham sib vaj huam sib luag multi-kov tswj, du sau:
Kev sib tham sib vaj huam sib luag txais cov cuab yeej siv hluav taws xob infrared los tsim, cov lus teb ceev ceev, ntau tus kov, ntau tus neeg sau ntawv tib lub sijhawm, tuaj yeem zoom hauv, zoom tawm, so nrog tes, thiab lwm yam.
Kev sib tham sib vaj huam sib luag duab zoo yog qhov tseeb:
Lub Rooj Tswjhwm Saib Vdink txais lub LCD npo + hom kev ua haujlwm, nrog rau cov kev daws teeb meem siab thiab cov xim muaj tseeb, thiab lub vijtsam tuaj yeem pom pom meej yam tsis muaj teeb pom kev.

 2021.12.29