“死产比”概念、定义、翻译-科学时代

单词	死产比
释义	人口学词汇手册死产比 stillbirth ratio
随便看	umbilicus umbles umbo umbo umbo umbo umbo-stage larva umbo veliger umbra umbra umbra umbra umbra umbra umbra umbral dot umbral eclipse umbral eclipse umbral flash umbrella umbrella umbrella umbrella agreement umbrella agreement umbrella agreement

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。