| 单词 | radioactive constant |
| 释义 | > as lemmasradioactive constant radioactive constant n. Physics a number representing the speed of radioactive decay, equal to the probability of a nucleus decaying in unit time; symbol λ; = disintegration constant n. at disintegration n. Compounds 2.The relation between λ and the half-life τ is τ = ln 2/ λ. ΘΚΠ the world > matter > physics > atomic nucleus > radioactive isotope > radioactive nuclide > [noun] > proportion likely to decay radioactive constant1903 1903 E. Rutherford & F. Soddy in London, Edinb., & Dublin Philos. Mag. 6th Ser. 5 581 The law of radioactive change may therefore be expressed in the one statement—the proportional amount of radioactive matter that changes in unit time is a constant... λ may therefore be suitably called the ‘radioactive constant’. 1942 J. D. Stranathan ‘Particles’ of Mod. Physics viii. 325 (heading) Relationships among the several radioactive constants. 2005 Marine Geol. 214 168/2 λ is the radioactive constant for 14C. < as lemmas |
| 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。