颗粒：群集照相乳剂上的银粒。感光快的乳剂，其颗粒较感光慢的为粗。
Grain: Cluster of silver particles in the photo-graphic emulsions. Emulsions with faster speed have larger grains than emulsions with slower speed.
颗粒：群集照相乳剂上的银粒。感光快的乳剂，其颗粒较感光慢的为粗。
Grain: Cluster of silver particles in the photo-graphic emulsions. Emulsions with faster speed have larger grains than emulsions with slower speed.
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