white projector hanging the ceiling conference room projection multi media equipment |
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| navigate by keyword : audience background beam black blue business ceiling cinema class classroom college communication computer conference corporate digital education equipment film hang interior lcd lens light media meeting modern mount mounted movie multimedia overhead path photographic photography presentation projection projector roof room screen seminar show slide teach technology video viewer white working |
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| White projector hanging on the ceiling of conference room, projection multi-media equipment, bottom view |
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