“等级划分”概念、定义、翻译-科学时代

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。

单词	等级划分
释义	请查阅等级划分--职系审订
随便看	British Technology Group British Television Advertising Awards (BTAA) British Theatre Association British Theatre Museum Association British thermal unit British thermal unit (Btu) British thermal unit（Btu） British Trade Monthly British United Press （BUP） British Weekly British West Indies British wine britonite Britpop Britten，Benjamin brittle at blue heat brittle behavior brittle coating brittle-coating method brittle crack brittle creep brittle creep brittle failure brittle-flexible transition brittle fracture