与"quaternary nitrogen"相近的词条

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• quaternary base resin
• quaternary carbon atom
• quaternary cationics
• quaternary compound
• quaternary hybrid
• quaternary nitrogen
• quaternary parasite
• Quaternary period
• quaternary protein structure
• quaternary structure
• quaternary structure of protein
• quaternary surfactant
• quaternary syphilis
• quaternary trimethylammonium
• quaternary vein
• quaternate

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