单词	Markovnikov rule
释义	Markovnikov rule noun Mar·​kov·​ni·​kov rule märˈkȯvnəˌkȯf- : a statement in chemistry: in the addition of compounds to olefins the negative portion of the compound added (as the bromine in hydrogen bromide) becomes attached to the least hydrogenated end of the carbon-carbon double bond (as in the addition of hydrogen bromide to propylene: CH3CH=CH2+HBr→CH3CHBrCH3) Word History Etymology after Vladimir V. Markovnikov †1904 Russian chemist
随便看	subsurface subsurface tillage subsurface tiller subsurfaces subsystem subsystems subtack subtacks subtacksmen subtangent subtangents subtartarean subtask subtasks subtaxa subtaxons subtectal subteen subteener subteenest subteenner subteennest subteens subtemperate subtenancies

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