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  1. Oxford American Dictionary

    wind tunnel

    • IPA[ˈwin(d) ˌtənl]

    美式

    • n.
      a tunnel-like apparatus for producing an airstream of known velocity past models of aircraft, buildings, or other solid objects in order to investigate flow or the effect of wind on the full-size object.；an open space through which strong winds are chaneled by surrounding tall buildings.

    • noun: wind tunnel, plural noun: wind tunnels