loudness
loudness-level
loudspeaker
loudspeaking
louver
louvered
love
low
low-altitude
low-and-high-pass
  low-angle
low-barrier
low-beta
low-birefringent
low-bit-rate
low-capacitance
low-coercivity
low-coherent
low-current
low-cut
low-definition

    low-angle radiation

    излучение под малым углом