Overhead projector in a classroom. Overhead projectors (OHPs) are used to project information from acetate sheets onto a wall or screen. A light in the base of the projector (bottom) illuminates the information, which is transmitted to the screen by lenses in the projector's head (top).
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Details
Creative#:
TOP10193555
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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