| 单词 | phosphorescence |
| 释义 | Word Frequency phosphorescence(ˌfɒsfəˈrɛsəns) noun 1. physics a. a fluorescence that persists after the bombarding radiation producing it has stopped b. a fluorescence for which the average lifetime of the excited atoms is greater than 10–8 seconds 2. the light emitted in phosphorescence 3. the emission of light during a chemical reaction, such as bioluminescence, in which insufficient heat is evolved to cause fluorescence Compare fluorescence |
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