| 释义 |
pneu.mat.icHnjU:5mAt7Ik, $nU:5mAt-adj [not gradable]operated by air pressure, or containing air气动的，充气的Our car has pneumatic brakes (= they operate by air pressure).我们的汽车有气动刹车。Pneumatic tyres (= those containing air) were invented in 1888 by John Dunlop.充气轮胎是由约翰·邓洛普于1888 年发明的。I've got a headache from listening to that pneumatic drill (Am and Aus also jackhammer) (= a powerful tool held in the hand which operates by air pressure and is used esp. for breaking hard surfaces, such as roads) going on outside all day.风钻在外面响了一整天，我听得头都疼了。
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