trolley pole

名词 n.
中文释义

英文释义

名词 n.
  1. A pole of wood or metal, used to transfer electricity from an overhead wire to power a tram, streetcar or trolley bus.
    — Current collection is by trolley pole with fixed head, and the locomotive is equipped with hand brake, electric headlights and a warning bell.

词形变化

trolley poles plural

词源

A trolley wheel (a wheel that trolls along a wire) at the end of a pole.
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