单词 | zpg |
释义 | > as lemmasZPG ZPG n. zero population growth. ΘΚΠ the world > life > biology > balance of nature > population > [noun] > population growth zero population growth1955 ZPG1970 1970 N.Y. Times 3 June 61/6 Of all the cries that have arisen, perhaps none is quite so superficially appealing, or so profound in its long-range social and economic implications, as zero population growth—‘ZPG’ in the slogans of the day. 1978 Nature 6 Apr. 491/3 This may have reduced the maximum possible number of children per female to around five, and it does not then require harsh assumptions about mortality rates to end up with ZPG. < as lemmas |
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