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Meaning of 第四纪

Lookup via: Pinyin | Radicals
第 dì 四 sì 纪 jì (Trad.: 第四紀)
fourth period; quaternary (geological period covering the recent ice ages over the last 180,000 years)
Example Sentences
1
中国第四纪冰川研究的回顾与展望
。
Review and prospects of Quaternary Glaciation research in China.
2
很明显
,
在第四纪
,
冰层已经历过生长和消融的多个阶段
。
It's evident that the ice sheets have gone through multiple stages of growth and retreat over the course of the Quaternary.
3
是第四纪冰川遗留下来的古老树种
,
在地球上已有
250
万年的历史
。
Is a legacy of the Quaternary glacial ancient trees on Earth over 250 million years of history.
4
该洞发育起于第四纪更新世早期或中期
,
属流入型地下河溶洞
。
Haizi cave originated in the early or middle stage, Pleistocenc, Quaternary, and is a kind of afflux underground river cave.
5
由于不断地转向自身
,
这艘船最后迷失在远古第四纪的化石冰原
。
Turning endlessly back upon itself, it was eventually lost in the fossilized ice of the Quaternary.