air brake
柯林斯词典
1. N-COUNT Air brakes are brakes that are used on heavy vehicles such as buses and trains and that are operated by means of compressed air. 氣牐; 空氣制動器
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1. N-COUNT Air brakes are brakes that are used on heavy vehicles such as buses and trains and that are operated by means of compressed air. 氣牐; 空氣制動器