| 单词 | net reproduction rate |
| 释义 | > as lemmasnet reproduction rate net reproduction rate n. a reproduction rate representing the average number of girls born to each woman of a population who can be expected to reach their mothers' age at the time of birth, calculated from the average fertility rates and death rates of each age group during the period considered. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > [noun] > reproduction rate gross reproduction rate1928 net reproduction rate1928 1928 R. R. Kuczynski Balance Births & Deaths I. iii. 46 The net reproduction rate, as we may call it, was 1·435. 1952 C. P. Blacker Eugenics: Galton & After viii. 170 Gross and net reproduction rates have been published for France since 1806. 1973 Sci. Amer. Apr. 19/1 Under conditions of high mortality the difference between the net reproduction rate and the gross reproduction rate is large. < as lemmas |
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