two-segment
two-shaft
two-shift
two-shock
two-sided
two-spar
two-speed
two-spindle
two-spool
two-spring
  two-stage
two-start
two-state
two-step
two-storied
two-story
two-strand
two-stroke
two-surface
two-terminal
two-terminal-pair

    two-stage furnace

    двухкамерная топка