谈多媒体投影机在使用中应注意的问题

Some Questions in the Use of Multi-media Projector

多媒体投影机是多媒体教学设备中的主要仪器,正确使用多媒体投影机,并做好日常保养与维护工作,延长其使用寿命,显得尤为重要。

Multi-media projector is one of the main instruments inmulti-media teaching equipments, whose correct use, daily maintenanceand the lengthening of its service life prove to be extremely important