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ectodermal germ layer造句

"ectodermal germ layer"是什么意思  
造句與例句手機(jī)版
  • The term "'Carcinoma "'( from the Greek " karkinos ", or " crab ", and "-oma ", " growth " ) is a type of cancer A carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that generally arises from cells originating in the endodermal or ectodermal germ layer during embryogenesis.
  • It's difficult to see ectodermal germ layer in a sentence. 用ectodermal germ layer造句挺難的
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