pneumatic
柯林斯词典
1. ADJ A pneumatic drill is operated by air under pressure and is very powerful. Pneumatic drills are often used for digging up roads. (钻头)气动的; 风动的[ADJ n]
...the sound of a pneumatic drill hammering away. ...风钻钻个不停的轰鸣声。
2. ADJ Pneumatic means filled with air. 充气的[ADJ n]
...pneumatic tyres. ...充气轮胎。
返回 pneumatic
pneumatic /njʊˈmætɪk/
剑桥词典
- operated by air pressure
由气压操作的；气动的
Our car has pneumatic brakes . 我们的汽车有气动刹车。
containing air
充气的
pneumatic tyres 充气轮胎 返回 pneumatic