“first appearance datum”的概念、定义、翻译、参考文献-科学参考

单词	first appearance datum
释义	first appearance datum Encyclopedia 理学生物地层带释 first appearance datum首现点某一化石分类单元在地层中出现的第一个层位（薄层）。是生物面的一种。又称首现基准面。
随便看	hybrid CMOS hybrid coding hybrid combustion hybrid [compound] hybrid compound hybrid computation hybrid computer hybrid configuration hybrid construction elevator hybrid control hybrid cotton hybrid-coupled hybrid cryptosystem hybrid culter "Xianfeng Ⅰ" hybrid deep network hybrid domain signal analyzer hybrid drive hybrid dynamic programming hybrid dynamic system hybrid dynamic system, HDS hybrid dynamic systems hybride composites hybrid effect of composite materials hybrid electric propulsion system hybrid electric vehicle

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。