(of a particular reactor core, body of fissile material, bomb, etc.) the minimum characteristic dimensions or mass at which it becomes capable of…
| 单词 | θ79751 |
| 释义 | the world > matter > physics > atomic nucleus > nuclear fission > [noun] > minimum of fissile material (7) critical size1940 (of a particular reactor core, body of fissile material, bomb, etc.) the minimum characteristic dimensions or mass at which it becomes capable of… critical mass1941 Nuclear Physics. The minimum mass or size of fissile material required in a nuclear reactor, bomb, etc., to sustain a steady chain reaction. Cf. cri… crit1957 colloquial (originally U.S.). = critical mass, n. 1 or critical size n. at critical, adj. n.compounds. Subcategories:— state of (2) — deviation from (1) — supercritical state (1) |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。