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单词 acetylene
释义

WordReference Random House Learner's Dictionary of American English © 2024
a•cet•y•lene /əˈsɛtəˌlin, -lɪn/USA pronunciation   n. [uncountable]
  1. Chemistrya colorless gas, used esp. in metal cutting and welding.

WordReference Random House Unabridged Dictionary of American English © 2024
a•cet•y•lene  (ə set′l ēn′, -in),USA pronunciation n. [Chem.]
  1. Chemistrya colorless gas, C2H2, having an etherlike odor, produced usually by the action of water on calcium carbide or by pyrolysis of natural gas: used esp. in metal cutting and welding, as an illuminant, and in organic synthesis. Also called ethine, ethyne. 
  • 1860–65; acetyl + -ene
a•cet•y•len•ic  (ə set′l en′ik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
acetylene /əˈsɛtɪˌliːn/ n
  1. a colourless flammable gas used in the manufacture of organic chemicals and in cutting and welding metals. Formula: C2H2
    Systematic name: ethyne
  2. another name for alkyne
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更新时间：2025/2/23 16:57:24