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BNC: 19817 COCA: 18301
pneumatic
njuːmætɪk njʊˈmætɪk nuˈmætɪk njuˈmætɪk
1 ADJ [ADJ n] 压缩空气推动(操作)的;风动的;气动的 A pneumatic drill is operated by air under pressure and is very powerful. Pneumatic drills are often used for digging up roads. 压缩空气推动(操作)的;风动的;气动的
  • ...the sound of a pneumatic drill hammering away.

    风钻钻个不停的轰鸣声

2 ADJ [ADJ n] 充气的 Pneumatic means filled with air. 充气的
  • ...pneumatic tyres.

    充气轮胎

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