th?c t?, v?n t?c gió luôn bi?n ??i nên h? th?ng bi?n ??i n?ng l??ng gió t?c ?? thay ??i“Like a issue of point, the PX747-4K should be strongly regarded as a meeting/boardroom projector in conditions where the subject material is principally figures, text, black and white bar graphs, and so on.c?ng xu?t Hello?n t? tr??ng quay mà t?c ?? ???c x