Front projection equipment - method for measuring screen illumination 正面放映设备.银幕照度测量方法
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Cinematography - projector usage of 8 mm type s motion - picture film for direct front projection 电影技术.直接正面放映用8mms型电影胶片放映机的用法
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Cinematography - projector usage of 16 mm motion - picture films for direct front projection - specifications 电影技术.直接正面放映16mm电影放映机的使用.规范
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Cinematography - projector usage of 8 mm type r silent motion - picture film for direct front projection - specifications 电影技术.直接正面放映的8mmr型电影胶片放映机的使用.规范