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词汇 surface contact
释义

Definition of surface contact in English:

surface contact

noun
  • 1Contact between two surfaces.

  • 2Engineering used attributive with reference to a system of electric traction in which the current is conveyed to a vehicle through conductors on the surface of the roadway which become live only when the vehicle passes over them (now historical).

Origin

Mid 19th century.

Definition of surface contact in US English:

surface contact

noun
  • 1Contact between two surfaces.

  • 2Engineering used attributive with reference to a system of electric traction in which the current is conveyed to a vehicle through conductors on the surface of the roadway which become live only when the vehicle passes over them (now historical).

Origin

Mid 19th century.

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