The quality or condition of not transmitting light; lack of transparency or translucency; inability to be seen through; (Physics) the ratio of the…
| 单词 | θ78700 |
| 释义 | the world > matter > physics > electromagnetic radiation > [noun] > imperviousness to radiation (1) opacity1634 The quality or condition of not transmitting light; lack of transparency or translucency; inability to be seen through; (Physics) the ratio of the… |
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