| 单词 | emission theory |
| 释义 | > as lemmasemission theory emission theory n. any theory of light or other radiation according to which it consists of streams of particles rather than waves. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > [noun] > science of > emission theory corpuscular theory1833 projectile theory1854 emission theory1880 1880 H. C. Bastian Brain 62 An emission theory..will not hold for the diffusion of light. 1926 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity i. 5 Finally for cathode rays the emission theory, and for Röntgen rays the wave theory held the field. < as lemmas |
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