“earmuff”的概念、定义、翻译、参考文献-科学参考

单词	earmuff
释义	earmuff Encyclopedia 工学耳罩释 earmuff耳罩把整个耳郭全部密封起来的护听器具。
随便看	principal escaped point principal factor principal fiber bundle principal fiber space principal fibration principal filter principal focus principal for facet sequence principal form principal formula principal fractional ideal principal fractionary ideal principal function principal function classes principal functor principal fundamental solution principal G bundle principal G-bundle principal genus principal G-object principal graduate principal graph principal group principal groupoid principal homogeneous G-set

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。