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释义
society > travel > travel by water > vessel, ship, or boat > buoys, marks, or lighthouses > [noun] > fog warning devices (5)
fog signal1759

A foghorn or other device used in foggy conditions either to warn shipping of danger or as a means of communication; a signal, typically a loud…

foghorn1819

An instrument or device (on a ship or on shore) used to produce a loud noise as a warning to shipping in foggy conditions.

gas gun1874

A signalling device in which sound is produced by the explosion of gas in a pipe, used to give guidance to ships in conditions of poor visibility. Obs

diaphone1906

A low-pitched fog signal operated by compressed air and characterized by the ‘grunt’ which ends each note. Also attributive.

Subcategories:

— towed behind a ship (1)
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更新时间:2025/2/3 13:15:36