low-melting-point
low-mobility
low-molecular
low-molecular-weight
low-noise
low-octane
low-ohmic
low-oil-content
low-orbit
low-orbiting
  low-order
low-pase
low-pass
lowpass-filter
low-permeability
low-permittivity
low-phosphorus
low-pitch
low-pitched
low-pole
low-pollution