This is a special attachment that sits on top of a standard overhead projector and is attached to a personal computer, making it large enough for easy audience viewing.
它是一种特殊的附带设备，放置在标准高射投影仪上方并和个人电脑连接，它可以放大电脑桌面，使观众看得很清楚。
The phototube, a very special type of electron tube, is the heart of the talking-picture projector.
光电管，一种非常特殊的电子管，是有声电影放映机的心脏。
Over the years, we cooperated with many medical care companies, projector manufacturers, movie machinery factories, automobile plants and special lighting plants very well.
多年来，我公司与各个医疗器械厂，投影机厂家，电影机械厂、汽车厂、特种光源厂配套深受好评。
Over the years, we cooperated with many medical care companies, projector manufacturers, movie machinery factories, automobile plants and special lighting plants very well.
多年来，我公司与各个医疗器械厂，投影机厂家，电影机械厂、汽车厂、特种光源厂配套深受好评。
应用推荐