Warning: file_put_contents(): Only 0 of 7619 bytes written, possibly out of free disk space in /www/wwwroot/ndsq.cn/index.php on line 55 demographist是什么意思,demographist的翻译,demographist音标、读音、用法和例句_开心英文字典_柠咚词
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。