英语词汇“proportion of old population”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	proportion of old population
释义	proportion of old population 基本例句 n.老龄人口比重 China's population continues to grow,the proportion of the aged is getting larger,and the pressure on employment and social security is mounting.人口总量继续增加，老龄人口比重上升，就业和社会保障压力增大。
随便看	bronchial varicosis bronchial vein bronchial veins bronchial venous varix bronchial wall bronchial web bronchial tube Bronchial tube asthma Bronchial tube internal membrane tuberculosis Bronchial tube lung cancer bronchial tuberculosis bronchial wheezing Bronchial wheezing syndrome bronchiarctia bronchi asthma bronchiat artery bronchic bronchical asthma bronchicanis bronchic cell bronchic cells bronchi/Cy bronchi/cytology bronchiec BRONCHIECT