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单词 θ5458
释义
the world > the earth > structure of the earth > age or period > [noun] > primary or Palaeozoic > carboniferous spec. (3)
Mississippian1893

Geology. The Mississippian period or system of rocks (see sense B. 2).

Pennsylvanian1902

Geology. With the. The Pennsylvanian period (see sense B. 2); the system of rocks dating from this time.

Namurian1931

The Namurian series or epoch. Also with the.

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更新时间:2024/11/10 22:55:33