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。
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。
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。
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