In the terminology of John William Draper: an instrument for measuring the intensity of tithonic rays. See tithonic, adj.
| 单词 | θ76617 |
| 释义 | the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [noun] > energy causing chemical changes > instrument for measuring (1) tithonometer1842 In the terminology of John William Draper: an instrument for measuring the intensity of tithonic rays. See tithonic, adj. |
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