Railways. A small explosive device used to signal for a train driver to slow or stop, which is placed on the rails in foggy weather, or as an…
| 单词 | θ202708 |
| 释义 | society > travel > rail travel > railway system or organization > [noun] > detonator used as fog signal (4) fog signal1844 Railways. A small explosive device used to signal for a train driver to slow or stop, which is placed on the rails in foggy weather, or as an… fog detonator1848 a small explosive device used to signal for a train driver to slow or stop, which is placed on the rails in foggy weather, or as an emergency… torpedo1877 A detonator placed on a railway line, as a fog-signal, etc. U.S. fog1883 Railways. = fog signal, n. 2. Obsolete. |
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