单词	alkyne
释义	alkyne /ˈalkʌɪn / noun Chemistry Any of the series of unsaturated hydrocarbons containing a triple bond, including acetylene. Alkynes have the general formula: CnH2n-2. Alkanes (sometimes called paraffins) have only single bonds, while alkenes (sometimes called olefins) have a carbon-carbon double bond, and alkynes have a carbon-carbon triple bond.... Originally the alkynes were called the acetylenes. The alkyne functional group is the carbon-carbon triple bond. Origin Early 20th century: from alkyl + -yne.
随便看	latke Latona La Tour, Georges de latria latrine Latrobe, Benjamin Henry Latrocinium -latry latte latte macchiato latten latter latter-day Latter-day Saint Latter-day Saints latter end Latter Lammas latterly lattermath lattermeat lattermost latterness latter wit lattice latticed

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