This paper introduced equipment choosing and environment construction of the multi-function classroom, especially the working principle of the projector and key points for choosing.
本文介绍了多功能教室中的设备选择及其环境建设，着重介绍了投影机的工作原理及选择要点。
The basic function of an overhead projector is similar to that of a slide projector.
投影仪的基本功能与幻灯机相似。
Power Management function shuts down the projector.
电源管理功能，关闭投影机。
Power Management function shuts down the projector.
电源管理功能，关闭投影机。
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