Fangcheng Recordable Smart Blackboard, siv "Sau" los txhim kho kev qhia ntawv zoo
Nrog rau kev txhim kho ntawm lub sijhawm thiab kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, Technology tau dhau los ua kev txhawb nqa loj los hloov peb txoj haujlwm, lub neej, thiab kev kawm. Coj kev qhia ua piv txwv, Thaum peb yog cov tub ntxhais kawm, lub podium, blackboard, thiab chalk yog tus qauv ...
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