open-cycle
open-die
open-ended
opener
open-flame
open-grained
open-hearth
opening
opening-out
open-jawed
  open-jet
open-lamp
open-link
open-loop
open-pit
open-plan
open-point
open-pore
open-shelter-deck
open-side
open-sight

    open-jet wind tunnel

    аэродинамическая труба с открытой рабочей частью