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单词 pneumatic
释义

pneumatic

adjective
/njuːˈmætɪk/
/nuːˈmætɪk/
[usually before noun]
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  1. filled with air
    • a pneumatic tyre
  2. worked by air under pressure
    • pneumatic tools
  3. Word Originmid 17th cent.: from French pneumatique or Latin pneumaticus, from Greek pneumatikos, from pneuma ‘wind’, from pnein ‘breathe’.
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更新时间:2024/9/20 14:53:54