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烟碱
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烟碱
nicotia(nicotine) β-pyridyl-a-N-methylpyrroli alkaloid of tobacco
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first member
first meridian
first milk
first minor
first molar
first moment
first-moment matrix
first momnet of mass
first mortgage bond
first motion
first motion direction
first-motion drive
first-motion hoist
first-motion studies
first-motion wave
first nodal point
first nodules
first normal form
first notice day
first of a kind plant
first-of-chain
first offence
first oocyte
first open water
first open water (F.O.W.)
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