投影屏幕是投影机周边设备中最常使用的产品之一，投影幕是投影屏幕的简称；投影屏幕如果与投影机搭配得当，可以得到优质的投影效果。
一个座椅被包装在投影幕形成的环里面组成了一个旋转平台。
A seat is mounted on a platform which is surrounded by an endless circular projection-tunnel.
联大是一家专业生产管状电机的制造企业，其产品广泛用于家用或商用的卷帘门，遮阳蓬，车库门，防火门，百叶窗和投影幕等设施。
LianDa is a Company specializing in tubular motors for shutters, awnings, garage doors, fire shutters, blinds and screens userd in home and buildings.
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