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