“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	Liu Jiongtian Liu Jiping Liu Jishan Liu Ji's Temple and Tomb Liu Jitang Liu Jiyou Liu Jizhen Liu Jizhou Liu Jiɑnhɑnɡ Liu Juanzi Guiyi Fang Liu Juanzi's Remedies Bequeathed by Ghosts Liuju cupreous sandstone deposit Liu Jue Liu Jun Liu Junxiang liujunzi decoction Liu Kai Liu Kaiqu Liu Kaiqu Memorial Hall of Huaibei Liu Kezhuang Liu Kuiguan’s Collected Facial Masks of Peking Opera Liu Kuili Liu kuiling Liu Kun Liu Lanbo

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