The reduction of the efficiency of an (esp. luminescent) material during use or exposure.
| 单词 | θ80931 |
| 释义 | the world > matter > light > darkness or absence of light > dimness or absence of brightness > [noun] > reduction in efficiency of luminescent material (1) fatigue1904 The reduction of the efficiency of an (esp. luminescent) material during use or exposure. |
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