medicine
medium
medium-airing
medium-approach
medium-close
medium-density
medium-duty
medium-energy
medium-frequency
medium-grain
  medium-hard
medium-head
medium-jacquard
medium-lift
medium-long
medium-persistence
medium-pressure
medium-range
medium-scale
medium-section
medium-size

    medium-hard rock

     порода средней крепости

     порода средней твёрдости