汽笛

汽笛
qìdí
(1) [whistle]∶一种使空气或蒸汽强行输入一个空洞或输向一薄薄的边瓣使产生一种尖锐的哨子声的装置

工厂汽笛

(2) [steam whistle]∶靠蒸汽的作用产生声音的哨笛; 尤指装在蒸汽锅炉上的这种哨笛

Advanced Chinese dictionary. 2013.

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