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单词 devonian
释义

devonian

听听怎么读
英 [de?v?uni?n]
美 [d??voni?n]
是什么意思
  • adj.

    德文郡的,(地质)泥盆纪(古代生物的一个时期)的;

  • n.

    德文郡,泥盆纪;

  • 英英释义

    devonian[ de'v?unj?n ]

    • n.from 405 million to 345 million years ago; dominance of fishes and appearance of amphibians and ammonites

      同义词:Devonian periodAge of Fishes

    学习怎么用

    词组短语

    middle devonian中泥盆世;中泥盆纪

    devonian period[地质]泥盆纪

    devonian system[地质]泥盆系

    双语例句

    用作形容词(adj.)
    1. Near the end of Devonian times, thirty percent of all animal life vanished.
      临近泥盆纪末时,地球上所有动物种类中的百分之三十都已灭绝。

    权威例句

    The Late Devonian Mass Extinction
    Devonian eustatic fluctuations in Euramerica
    Devonian eustatic fluctuations in Euramerica: Discussion
    The late devonian mass extinction. The Frasnian/Famennian crisis
    Devonian eustatic fluctuations in Euramerica. Geol Soc Am Bull 96: 567-587
    The Late Devonian mass extinction : the Frasnian/Famennian crisis
    A new group of Early Devonian plants with valvate sporangia containing sculptured permanent dyads
    Morphological Disparity in Ordovician-Devonian Crinoids and the Early Saturation of Morphological Space
    Coordinated stasis and evolutionary ecology of Silurian to Middle Devonian faunas in the Appalachian Basin
    Characterizing the shale gas resource potential of Devonian-Mississippian strata in the Western Canada sedimentary basin: applicatio...
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