“二代发病率”概念、定义、翻译-科学时代

单词	二代发病率
释义	统计学词汇手册 secondary attack rate 二代发病率
随便看	bill of entry bill of entry bill of entry bill of entry bill of entry (B/E) bill of entry (B/E) bill of entry--bill of entry (B/E) bill of evidence bill of exchange bill of exchange bill of exchange bill of exchange bill of exchange bill of exchange bill of exchange (B/E) bill of exchange (B/E) bill of exchange (B/E) bill of exchange--bill of exchange (B/E) bill of exchange--bill of exchange (B/E) bill of exchange--bill of exchange（B/E） bill of exchange（B/E） bill of exchange（B/E） bill of fare bill of fare bill of fare

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。

secondary attack rate