track-circuiting

名词 n.

英文释义

名词 n.
  1. The provision of track circuits. uncountable
    — Other signalling modernisation works cover the provision of track circuiting and colour-light signalling in a large number of localities, where the existing signalling systems are inadequate to deal efficiently with the higher speeds and frequency of the future services.

词源

From track circuit + -ing.
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