trip wire

English

trip wire (plural trip wires)

Alternative form of tripwire
- 1961 November, “Talking of Trains: Aircraft on rail tracks”, in Trains Illustrated, page 650:
  Here the protection consists of a 50lb per mile cadmium copper trip-wire mounted on short telegraph posts on both sides of the line, 4ft above rail level. Current through both trip wires energises a relay in the signalbox.

单词	trip wire
释义	trip wire English Noun trip wire (plural trip wires) Alternative form of tripwire 1961 November, “Talking of Trains: Aircraft on rail tracks”, in Trains Illustrated, page 650: Here the protection consists of a 50lb per mile cadmium copper trip-wire mounted on short telegraph posts on both sides of the line, 4ft above rail level. Current through both trip wires energises a relay in the signalbox. References “trip wire” in Merriam–Webster Online Dictionary.
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