“中生代哺乳动物”的概念、定义、翻译、参考文献-科学参考

单词	中生代哺乳动物
释义	中生代哺乳动物 Encyclopedia 理学古脊椎动物学释 mammals(Mesozoic)中生代哺乳动物包括新生代开始（约6600万年前）前的各个不同门类的哺乳动物。不是一个自然分类单元。
随便看	emission frequency emission inventories Emission inventory of pollutants emission line emission-line galaxy emission-line nebula emission-line object emission-line star emission measure emission mechanism emission microscope emission nebula emission nebulosity emission of black hole emission operator emission performance standard for stationary source emission point emission probability emission process emission sources emission spectrographic analysis emission-spectroscopical emission spectroscopy emission spectrum emission standard for industrial enterprises noise at boundary

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。