bó wù guǎn / xiū fù shī / tōng guò / zhǐ zhāng / hé / mò sè / de / tè zhēng / pàn duàn / yì pī / jiù shū / shì fǒu / wéi / kē luó bǎn / yìn běn

博物馆修复师通过纸张和墨色的特征，判断一批旧书是否为珂罗版印本。

Based on the characteristics of the paper and ink, the museum conservator determined whether a batch of old books consisted of collotype prints.