? Không ?i?u khi?n: trong tr??ng h?p này tuabin và máy ?i?n ???c thi?t k? ??“As a make a difference of fact, the PX747-4K really should be strongly regarded as a convention/boardroom projector in circumstances where the subject material is principally numbers, textual content, black and white bar graphs, and so on.B? ?i?u khi?n khi nh?n ???c