gastrulas

常見(jiàn)例句

用作名詞 (n.)

• The resulting gastrula consists of an outer ectoderm, an inner endoderm, and a mesoderm layer positioned between them.
  最終原腸胚由一個(gè)外腸胚，內(nèi)腸胚，和一個(gè)中腸胚搆成。
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