“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	Yue Wang Tower in the Mount Gui of Mianyang Yuexia Yue Xiaojun Yuexi Baixi opera Yuexi Cuilan tea Yuexiezhuren Yuexi Gaoqiang opera Yuexi Gaoqiang Opera Heritage Centre Yue Xingfu Yuexi Xian Yue Xixin Yueya Hu Yueyan Yueyang Yueyang Baling Opera Inheritance Research Institute Yueyang city Yueyang Confucian Temple Yueyang flower-drum opera Yueyanglou Qu Yueyang Museum Yueyang Pavilion Yueyang Shi Yueyang Tonggushan Yueyang Tower Yueyang Tower and Dongting Lake Scenic and Historic Area

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