Physics. The action of giving off radiation or particles; a flow of electrons from a cathode-ray tube or other source.
| 单词 | θ76069 |
| 释义 | the world > matter > physics > energy or power of doing work > [noun] > emission of energy (8) emission1900 Physics. The action of giving off radiation or particles; a flow of electrons from a cathode-ray tube or other source. radiation1908 The emission of energy of any kind in the form of rays or waves (esp. electromagnetic waves), or subatomic particles. Subcategories:— a ray (1) — reflection (1) — insulation (1) — that which (2) — screened region (1) |
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