Nuclear Physics. Of a nuclear reactor or fuel: to reach the point of sustaining a steady fission chain reaction. Cf. sense A. 4b.
| 单词 | θ79657 |
| 释义 | the world > matter > physics > atomic nucleus > nuclear fission > nuclear reactor > of reactor: become self-sustaining [verb (intransitive)] (3) to go critical1947 Nuclear Physics. Of a nuclear reactor or fuel: to reach the point of sustaining a steady fission chain reaction. Cf. sense A. 4b. Subcategories:— close down (2) |
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