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quaternary ammonium hydrate
quaternary ammonium hydroxide
quaternary ammonium salt
quaternary ammonium spasmolytic drug
quaternary ammoniun compounds
quaternary carbon atom
quaternary cationics
quaternary code
quaternary compound
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quaternary ammoniun compounds
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quaternary ammoniun compounds
Definitions
[1]
[医]
季铵化合物
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quaternary ammoniun compounds