英语词汇“demographic structure”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	demographic structure
释义	demographic structure短语¹⁴⁴⁹⁷²⁺² 基本例句人口结构人口老龄化 A massive demographic shift in China is under way.中国正在经历一场巨大的人口结构转变。 Most explanations of the demographic transition are social.对于人口结构转化的解释大都出自社会学角度。
随便看	photometric integrator photometric intensity Photometric invariance photometric lamp photometric light photometric linearity photometric magnitude photometric match photometric measurement photometric method photometric night photometricnoise photometric observation photometric orbit photometric paper photometric paradox photometric parallax photometric parameter photometric parameters photometric performance photometric period photometric perturbation photometric phase photometric power photometric precision