fire alarm horn

名词 n.
中文释义

英文释义

名词 n.
  1. A horn on a fire alarm that sounds in case of fire, either automatically when the system detects fire or manually when the alarm is pulled, to alert the occupants of a building or complex of the hazard.
  2. A siren used to alert a town or neighborhood of fire. historical

词形变化

fire alarm horns plural
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