与"primordial covering"相近的词条

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• primordia of tooth
• primordial
• primordial blastopore
• primordial cell
• primordial cells
• primordial covering
• primordial cuticle
• primordial cyst
• primordial cyst of bone
• Primordial cyst of jaw
• primordial duct
• primordial dwarf
• primordial dwarfism
• primordial dwarftism
• primordial ecosystem
• primordial endoderm cell

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