| 单词 | 光密 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔densitometer〕An apparatus for measuring the optical density of a material, such as a photographic negative.（光）密度计：测量材料，例如相片感光纸光密度的器械美国传统〔microdensitometer〕An extremely sensitive densitometer used to detect on a film or photographic plate spectrum lines too faint to be seen by the human eye.显微光密度计；测微密度计：一种极其敏感的密度计，用以测定电影或摄影感光版中人眼看不到的微弱光谱线美国传统〔narrowly〕Her sharp eyes watched him narrowly.她用锐利的目光密切地注视着他。英汉大词典 |
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