Definition of fog signal in English:

fog signal

noun

A small explosive charge which can be placed on a railway line in fog to be set off by the train as a signal to the driver.
雾（中）信号，响墩。亦称DETONATOR
Example sentencesExamples
- Students were taught how to lay dummy charges and fog signals, then walk away and hide.
- Semaphore flags and fog signals are methods of communication.
- Beavertail has probably seen more types of fog signals than any other New England lighthouse station.
- There was a special felt lined cupboard for storing the detonators for the fog signal charges.
- These vessels, while constrained, are required to sound the same fog signal that would be sounded while underway.
- The light has a nominal range of 22 miles and the fog signal a usual range of 2 miles.
- The air fog signal was replaced by an electric omnidirectional signal controlled by a fog detector.
- Two years later, the original fog signal was replaced by a one and a half story, wood-framed structure.
- Construction began on the fog signal on July 1, 1890, and was completed on October 9 the same year.
- Later various different fog signals were used until 1904 when a compressed air system replaced the old steam-operated signals.
- The fog signal, a 12-inch steam whistle, was attached to the roof of the fog signal building.
- When the automated fog signal was installed the south window was blocked with the fog sensor.
- The original fog signal was a steam whistle, similar to the kind used in locomotives and ships.
- In the 1820s a bell fog signal was apparently introduced at West Quoddy Head Lighthouse in Maine.
- In the background is one of the two new electronic fog signals currently in use at Spring Point.

单词	fog signal
释义	Definition of fog signal in English: fog signal noun A small explosive charge which can be placed on a railway line in fog to be set off by the train as a signal to the driver. 雾（中）信号，响墩。亦称DETONATOR Example sentencesExamples Students were taught how to lay dummy charges and fog signals, then walk away and hide. Semaphore flags and fog signals are methods of communication. Beavertail has probably seen more types of fog signals than any other New England lighthouse station. There was a special felt lined cupboard for storing the detonators for the fog signal charges. These vessels, while constrained, are required to sound the same fog signal that would be sounded while underway. The light has a nominal range of 22 miles and the fog signal a usual range of 2 miles. The air fog signal was replaced by an electric omnidirectional signal controlled by a fog detector. Two years later, the original fog signal was replaced by a one and a half story, wood-framed structure. Construction began on the fog signal on July 1, 1890, and was completed on October 9 the same year. Later various different fog signals were used until 1904 when a compressed air system replaced the old steam-operated signals. The fog signal, a 12-inch steam whistle, was attached to the roof of the fog signal building. When the automated fog signal was installed the south window was blocked with the fog sensor. The original fog signal was a steam whistle, similar to the kind used in locomotives and ships. In the 1820s a bell fog signal was apparently introduced at West Quoddy Head Lighthouse in Maine. In the background is one of the two new electronic fog signals currently in use at Spring Point.
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