fossil shell

 
  • 化石壳体

fossil shell的用法和样例:

例句

  1. The coiled, flat, chambered fossil shell of an extinct mollusk belonging to the class Cephalopoda, which was abundant in the Cretaceous period.
    菊石,鹦鹉螺化石已灭绝软体动物的螺旋形、扁平的化石外壳,属头足纲动物,大量存在于中生代
  2. Their fossil shells usually take the form of planispirals, although there were some helically-spiralled and non-spiralled forms (known as "heteromorphs").
    菊石化石外壳呈平旋形,不过也有螺旋上升形和非螺旋形(称为“异形”)。
  3. Preliminary Study on the Fossil Shell Composition of Palaeozoic Era Brachiopodaa at Wudang Guiyang
    贵阳乌当古生代腕足动物化石壳质成份的初步研究
  4. He found a piece of fossil of an ancient bird.
    他发现一块古代鸟类的化石。
  5. This fossil may be over 2 million years old.
    这化石可能超过二百万年了。
  6. Keep down of you'll be hit by shell fragments.
    别起来,否则你会被弹片击中的。

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