Ordovician period

Ordovician period

 英

  • un.奥陶纪

英汉解释

un.
1.
奥陶纪

例句

The third period of the Paleozoic era, the Silurian follows the Ordovician period and precedes the Devonian.

第三纪奥陶纪之后泥盆纪之前

paleo-landform; Jurassic Period; Ordovician Period; migration of oil and gas; distribution of oil and gas;

侵蚀整合地貌侏罗纪奥陶纪油气运移油气分布

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