柯林斯詞典pneumatic /nj??m?t?k/ 1. ADJ A pneumatic drill is operated by air under pressure and is very powerful. Pneumatic drills are often used for digging up roads. (鉆頭)氣動(dòng)的; 風(fēng)動(dòng)的[ADJ n] ...the sound of a pneumatic drill hammering away. ...風(fēng)鉆鉆個(gè)不停的轟鳴聲。2. ADJ Pneumatic means filled with air. 充氣的[ADJ n] ...pneumatic tyres. ...充氣輪胎。 返回 pneumatic劍橋詞典operated by air pressure 由氣壓操作的；氣動(dòng)的 Our car has pneumatic brakes . 我們的汽車有氣動(dòng)剎車。 containing air 充氣的 pneumatic tyres 充氣輪胎 返回 pneumatic