air horn

English

air horn (plural air horns)

Alternative form of airhorn
- 1962 March, Brian Haresnape, “Design in 1961—a Retrospect”, in Modern Railways, page 191:
  At a later date in production, the Western Region requested that the two-tone air horns should be placed on the cab roof instead of behind the buffer beam, in order to increase audibility.

单词	air horn
释义	air horn English Noun air horn (plural air horns) Alternative form of airhorn 1962 March, Brian Haresnape, “Design in 1961—a Retrospect”, in Modern Railways, page 191: At a later date in production, the Western Region requested that the two-tone air horns should be placed on the cab roof instead of behind the buffer beam, in order to increase audibility. References “air horn”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.
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