colour separation enlarger
... 立柱式放大机 column type enlargar 分色放大机 color separation enlarger 电机放大机 amplidyne ...
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其彩色负片分别用红、绿、蓝滤色镜及普通放大机分色放大，制成黑白正版。
The magnified black white positive separation plates of the negative color film were made with an ordinary enlarger and the filters of red, green and blue.
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