two-head
two-hole
two-layer
two-line
two-liquid
two-lobe
two-pen
two-phase
two-plug
two-rotor
  two-row
two-screw
two-section
two-sectional
two-side
two-size
two-speed
two-spool
two-stage
two-step
two-string

    two-row seal

    двухрядный сальник