A substance which darkens when bombarded with electrons; spec. such a substance (esp. potassium chloride) used as a coating in cathode ray tubes…
| 单词 | θ78521 |
| 释义 | the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun] > coating of screen (1) scotophor1946 A substance which darkens when bombarded with electrons; spec. such a substance (esp. potassium chloride) used as a coating in cathode ray tubes… |
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