英语词汇Ordovician的翻译、用法及例句-MX2U.com英汉词典

Ordovician

adjective geology specialized uk/ˌɔː.dəˈvɪʃ.ən/ us/ˌɔːr.dəˈvɪʃ.ən/

奥陶纪的（距今约4亿8千5百万年至4亿4千5百万年前间，此时水中已有许多动物包括脊椎动物，但是陆地上还没有动物）

from or referring to the period of time between about 485 and 445 million years ago, in which there were many different types of animals in the sea, including vertebrates (= animals with backbones), but no life on land

For his PhD he mapped Welsh Ordovician rocks and described new species of fossils.

In mid Ordovician times a volcanic island arc is thought to have extended through the English Lake District, Wales and Newfoundland.

As time passed there was a possible lowering of local temperatures in the succeeding Ordovician period.
The same unfortunately isn't the case for the very brief late Ordovician cold spell.
An early Ordovician trench is thought to have extended from just north of the Southern Uplands of Scotland down across northern Ireland.

词汇	Ordovician
释义	Ordovician adjective geology specialized uk/ˌɔː.dəˈvɪʃ.ən/ us/ˌɔːr.dəˈvɪʃ.ən/ 奥陶纪的（距今约4亿8千5百万年至4亿4千5百万年前间，此时水中已有许多动物包括脊椎动物，但是陆地上还没有动物） from or referring to the period of time between about 485 and 445 million years ago, in which there were many different types of animals in the sea, including vertebrates (= animals with backbones), but no life on land For his PhD he mapped Welsh Ordovician rocks and described new species of fossils. In mid Ordovician times a volcanic island arc is thought to have extended through the English Lake District, Wales and Newfoundland. 更多例句 As time passed there was a possible lowering of local temperatures in the succeeding Ordovician period. The same unfortunately isn't the case for the very brief late Ordovician cold spell. An early Ordovician trench is thought to have extended from just north of the Southern Uplands of Scotland down across northern Ireland.
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