“first demographic transition”的概念、定义、翻译、参考文献-科学参考

单词	first demographic transition
释义	first demographic transition Encyclopedia 法学人口转变释 first demographic transition第一次人口转变人口出生率、死亡率和自然增长率从传统的“高出生（率）、高死亡（率）、低增长（率）”，经历“高出生（率）、低死亡（率）、高增长（率）”的转换过渡，转变为“低出生（率）、低死亡（率）、低增长（率）”的现代人口再生产类型的历史演变过程。
随便看	radiation environmental automatic monitoring station radiation environmental impact assessment radiation environmental monitoring radiation environmental quality assessment radiation environment management radiation equilibrium radiation era radiation esophagitis radiation exchange factor radiation experimental measurement radiation exposure radiation factor radiation field radiation field measurement radiation flow radiation flux radiation frequency spectrum radiation function radiation gauge radiation gauge, radiometer radiation generator radiation genetics radiation geometry radiation graft copolymer radiation grafting

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