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单词 recognition signal
释义

Definition of recognition signal in English:

recognition signal

noun
Military
  • A prearranged signal used by vessels, etc., for mutual identification.

Origin

Mid 19th century; earliest use found in Richard Townsend (1821–1884), mathematician.

Definition of recognition signal in US English:

recognition signal

noun
Military
  • A prearranged signal used by vessels, etc., for mutual identification.

Origin

Mid 19th century; earliest use found in Richard Townsend (1821–1884), mathematician.

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