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1·The image of the charges in the process of smelting at high temperature was recorded on video recorder tape or X-ray film.

炉料在熔炼时所发生的变化均记录在电视录像磁带及X光胶片上。

2·The chief equipment of electrified education includes slide projector, overhead projector, film projector, tape recorder, television set, TV camera and so on.

其主要设备包括用于幻灯、投影、电影、录音、电视和摄像等方面的机器。