“Ludian”的概念、定义、翻译、参考文献-科学参考

单词	Ludian
释义	Ludian [`lü·dē·ǝn] ^GEOLOGY A European stage of geologic time in the uppermost Eocene, above the Bartonian and below the Tongrian of the Oligocene.
随便看	Ulvales umangite umbel Umbellales Umbelliferae umber umbilic umbilical artery umbilical connections umbilical cord umbilical duct umbilical hernia umbilical point umbilical tower umbilical vein Umbilicariaceae umbilicus umbo umbonate umbra umbrella antenna umbrella roof Umbrept Umbriel Umkehr effect

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