Warning: file_put_contents(/www/wwwroot/ppbbu/80125.cn/cache/38e3fc8f5632aa0a97b8d5371e21a2ac.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 demographist是什么意思，demographist的翻译，demographist音标、读音、用法和例句_食材铺反向词典
It is concerned that the problem of population carrying capacity and demographist had proposed the different maximum of the population carrying capacity. 摘要对于地球的人口容量问题，人口学者曾做过许多尝试，并提出了不同版本的人口容量阙值。