英语词汇“old age population index”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	old age population index
释义	old age population index 老年人口指数
随便看	materials earmarked for unified distribution material selection materials engineering materials engineering manual materials examination and acceptance report materials expenses materials field investigation materials flow materials for drug delivery materials for imaging materials for vacuum technique materials goods material shade materials handler materials-handling materials handling materials handling analysis materials handling department materials handling engineering materials handling equipment materials handling expense materials handlings materials handlinng equipment materials hauling materials hazardous in bulk 燕子西飞去燕子谁家燕子飞时燕子飞来窥画栋燕寝凝清香燕尾绣蝥弧燕山旆欲挥燕山月似钩燕山雪花大如席燕帘莺户睑腺炎睒睖睖睁睚睚眦睛睞睠睡