zpětný projektor
Another is to record it on a transparency sheet, which can then be displayed by means of an overhead projector on a screen or blank wall. (BNCI)
One should decide whether any information would be better given on a hand-out, or on the overhead projector. (BNCI)
Disadvantages of the overhead projector are few, and mainly relate to technical breakdown, such as a bulb blowing, or the fuse breaking. (BNCI)
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