英语词汇“replacement fertility”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	replacement fertility
释义	replacement fertility noun The birth rate at which the population level remains constant, taking into account the mortality rate and other factors. Origin 1960s.
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英语词典包含243303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。

replacement fertility