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单词 fog detonator
释义

Definition of fog detonator in English:

fog detonator

noun
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 emergency measure, so as to be set off by the train as it passes.

Origin

Mid 19th century.

 
 

Definition of fog detonator in US English:

fog detonator

noun
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 emergency measure, so as to be set off by the train as it passes.

Origin

Mid 19th century.

 
 
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更新时间:2024/9/20 23:40:09