| 单词 | reproduction factor |
| 释义 | > as lemmasreproduction factor reproduction factor n. (a) Biology = reproduction rate n.; (b) Nuclear Physics = multiplication factor n. (a) at multiplication n. Compounds. ΘΚΠ the world > matter > physics > atomic nucleus > nuclear fission > [noun] > neutron ratio reproduction factor1918 multiplication factor1941 multiplication constant1945 reproduction constant1950 1918 Commerce Rep. (U.S. Dept. Commerce) 13 July 171 The increases of foreigners..display the influence of those two factors..till, in the case of the British, for example, the influence of the reproduction factor almost entirely vanishes. 1945 H. D. Smyth Gen. Acct. Devel. Atomic Energy Mil. Purposes iv. 35 The whole success or failure of the uranium project depended on the multiplication factor k, sometimes called the reproduction factor. 1998 Canad. Jrnl. Bot. 76 75 Virulence and aggressiveness were assessed in terms of nematode reproduction by egg-mass index and reproduction factor. 2004 C. A. Bertulani & P. Danielewicz Introd. Nucl. Reactions v. 257 One still needs to compute the losses through the surface i.e. what counts in practice is the reproduction factor k for a finite pile. < as lemmas |
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