STEREO DUOUBLE PROJECTOR Description
A. Audience hall is tending to narrow and long.
B. Angle between two projectors should be as small as possible.
C. Reflect angle of metal screen should be as large as possible.
D. Sound surrounding s should accord with the requirement of stereo sound reproduction.
Printable STEREO DUOUBLE PROJECTOR, Imprinted,
Branded STEREO DUOUBLE PROJECTORPrinting, Printed STEREO DUOUBLE PROJECTOR
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