你也许会被叫去做演讲而不用任何设备，也可能会准备一块白板、幻灯机或投影仪。
You may be called on to present using no equipment or you may have a whiteboard slide projector overhead projector or beam projector available.
会议设施租用：如下设备可供会场使用单位借用或租用：手提电脑、电脑投影仪、幻灯机、录像机、演讲台、白板等。如有需要请与营业部联系。
Renting Conference Facilities: For renting portable computer, over-head projector, epidiascope, video-tape player, speech desk, whiteboard, etc. please contact with Sales Dept.
投影仪的基本功能与幻灯机相似。
The basic function of an overhead projector is similar to that of a slide projector.
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