“老年人口系数”的概念、定义、翻译、参考文献-科学参考

单词	老年人口系数
释义	老年人口系数 Encyclopedia 医学老年流行病学释 coefficient of aged population老年人口系数老年人口在某个国家或某个地区的总人口构成中所占的比例。又称老年人口比例。
随便看	artificial climatic chamber artificial cloud dissipation and rain suppression artificial cochlea artificial comet artificial compression artificial concept artificial constraint artificial constraint technique artificial construction techniques artificial cranium artificial crater Artificial Daylight 6500K artificial diamond artificial digestive juice artificial disturbance artificial downwelling artificial ear artificial earthquake seismometer artificial earth satellite artificial electronic prosthesis artificial element artificial endosperm artificial enhancing rainfall artificial environment artificial enzyme

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。