Nuclear Physics. A substance that slows down neutrons passing through it; spec. one used in a nuclear reactor to control the rate of fission by…
| 单词 | θ79670 |
| 释义 | the world > matter > physics > atomic nucleus > nuclear fission > nuclear fuel > [noun] > substance reducing speed (2) moderator1945 Nuclear Physics. A substance that slows down neutrons passing through it; spec. one used in a nuclear reactor to control the rate of fission by… Subcategories:— use of (1) |
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