rotational
rotationally
rotation-anode
rotation-invariant
rotation-type
rotation-vibration
rotator
rotatory
rotoflection
rotoflector
  rotor
rough
rough-cut
roughness
round
rounding
round-off
round-robin
round-the-world
round-trip
rout

    rotor modulation

    амплитудная модуляция, обусловленная вращением винта ЛА