| 单词 | 密度计 |
| 释义 | 〔densimeter〕An instrument used to measure density or specific gravity. Also called densitometer 比重计，密度计：用于测量密度或特定重量的仪器 也作 densitometer〔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〔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〔salinometer〕An instrument that uses electrical conductivity to measure the concentration of salt in a solution.盐液密度计：一种工具，用电流传导测量溶液含盐的浓度 |
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