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    2025-07-28
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    2025-07-28
  • “blastoderm”的英英意思

    “blastoderm”的英英意思

    单词 blastoderm 释义 blastoderm Biol.|blstdm|[f. blasto- + Gr. , - skin.]The germinal skin or membrane surrounding the yolk in the impregnated living ovum, and constituting the superficial layer of the embryo in its earliest condition. It divides into tw...

    2025-07-28