“period infant mortality”概念、定义、翻译-科学时代

单词	period infant mortality
释义	人口学词汇手册 period infant mortality 时期婴儿死亡率
随便看	account classification account code account collected in advance account collected in advance account current account current account current account current account current book account day account day account day account day account director (AD) account due account duty accountee account en route account executive account executive account executive (AE) account form account form account form of balance sheet account form of balance sheet

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。