冰期
- 与 冰期 相关的网络例句 [注:此内容来源于网络,仅供参考]
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They studied the Bering Strait's potential impact on glacial oscillations.
在最后一个冰期期间,他们了解到海平面的下降偶尔会产生横跨海峡的陆桥。
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This thesis includes three chapters:Chapter 1: The ancient global climate especially the glacial climate in Quaternary and its influence on biota are summarized.
本论文包括三部分:第一章:对全球的古气候特别是第四纪的冰期气候及其对物种的影响进行了概述。
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When our species first arrived in Europe, the peak of the Ice Age was approaching and the continent was already crawling with a rival: stronger, at home in the cold and even (contrary to their popular image) brainier than us.
欧洲 当我们的祖先第一次抵达欧洲时,冰河时代最大的一次冰期正在接近,陆地上危险遍布这一支人类可能比我们更耐寒且更聪明。
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With development of Antarctic icesheet, the Earth entered a glacial period of Late Cenozoic Ice Age.
温室气候的成因和冰期气候转型的机制一直是国际相关学界关注的问题。
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The solar activity and volcanic eruptions are the main factors of climatic changes during the Little Ice Age.
太阳活动和火山活动是小冰期气候变化的主要因素。
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In the last 20 years, a lot of geological data and climate simulation studies showed that continentality increased and water cycle between land and ocean became weaker at 21ka BP. Therefore, annual precipitation decreased significantly and climate became dry globally at 21ka BP.
近二十多年来大量地质资料和气候模拟研究表明,末次盛冰期大陆度增加、海陆水分循环减弱、年降水量减少,全球大陆普遍干燥。
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Little is known about climatic conditions in the tropics during the last glacial period and the deglaciation that followed.
人们对最后一次冰期热带的气候条件以及随后发生的冰川消退知之甚少。
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The onset of deglaciation occurred in 12 000 BP, and the beginning of post-glacial time has been fixed at around 10 000 BP.
在末次冰期间阶段,曾出现过冰川退缩过程,芬兰北部的冰碛下泥炭的~(14)C年代为40000—58000年B.P。。
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There were five Quaternary glaciations in the Halasi River Catchment according to the remains of Quaternary glaciations and C〓 dating.
根据第四纪冰川遗迹和〓测年,哈纳斯河流域存在五次明显的冰期,其中更新世存在三次冰期。
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Several main results on the evolutions of the life and environment on early earth are summarized as follows:(1) the oxygenation of surface environment didn''t cease until a stable stage for 0.4Ga appeared after 1.6Ga;(2) compared to the isotopic compositions of kerogens and coexisted carbonates, the differences between two can effectively carrier the signals from local environments and bio-assemblages;(3) multiple isotopic relationships between kerogens and individual alkanes in Proterozoic samples were observed, which would depend on the specific biogeochemical processes;(4) repeated biogeochemical changes were observed accompanying Neoproerozoic glaciations, which suggesting that environmental rather than evolutionary forces were driving the biogeochemical changes;(5) the bio-radiations after Neoproterozoic glaciations were definitely suggested by molecular and isotopic data to be at the early Cambrian and after the middle of Doushantuo deposition with different triggers for them.
研究获得以下重要认识:(1)古元古代地表环境的氧化可能一直持续到中元古代早期(约1.6Ga),而在此之后的4亿年里则保持相对稳定;(2)相对于传统的干酪根和碳酸盐的碳同位素组成,二者之差则能更好反映区域环境的演化特征;(3)在元古代干酪根与单体烷烃类之间存在多种碳同位素组成关系;而其与不同的生物地球化学过程有关;(4)全球海洋生物地球化学特征随新元古代多次冰期出现循环波动,这显然为环境因子的驱动;(5)在新元古代大冰期之后,分子与同位素数据显示地球生命在陡山沱中后期和早前寒武纪出现两次大辐射,然而两次生命辐射的本质却是不同的。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。