中奧陶世
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Chinese[edit]
middle; centre; within middle; centre; within; among; in; while (doing sth); during; China; Chinese; hit (the mark) |
the Ordovician | epoch | ||
---|---|---|---|---|
trad. (中奧陶世) | 中 | 奧陶 | 世 | |
simp. (中奥陶世) | 中 | 奥陶 | 世 |
Pronunciation[edit]
Proper noun[edit]
中奧陶世
- (geology) the Middle Ordovician epoch (part of the Ordovician period, spanning from 470 to 458.4 million years ago)