“world fertility survey”的概念、定义、翻译、参考文献-科学参考

单词	world fertility survey
释义	world fertility survey Encyclopedia 理学人口统计学释 world fertility survey;WFS世界生育调查由国际统计学会（International Statistical Institute，ISI）于1972年设立的世界生育率调查项目。
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。