faluns的翻译，读音
英/fə'lʌnz/
释义：
砂质泥灰岩
n. A series of strata, of the Middle Tertiary period, of
France, abounding in shells, and used by Lyell as the type of his
Miocene subdivision.
n. A series of strata, of the Middle Tertiary period, of
France, abounding in shells, and used by Lyell as the type of his
Miocene subdivision.