Nuclear Physics. The state of a nuclear reactor or fuel that sustains a steady chain reaction. See critical, adj. 4b.
| 单词 | θ79752 |
| 释义 | the world > matter > physics > atomic nucleus > nuclear fission > [noun] > minimum of fissile material > state of (2) criticality1946 Nuclear Physics. The state of a nuclear reactor or fuel that sustains a steady chain reaction. See critical, adj. 4b. prompt criticality1954 the condition or state of being prompt critical. |
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