panchromatic portrait film
panchromatic portrait film
全色人像胶卷
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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This article try to find out the effect of the packing materials and film base to conservation character of panchromatic portrait film through doing the artificial aging experiment .
本文主要是通过做人工老化实验，探索包装材料与片基对人像胶片保藏性能的影响。
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