low-activity
low-air-pressure
low-alkali
low-alloy
low-altitude
low-angle
low-apogee
low-ash
low-attenuation
low-bandgap
  low-bar
low-beta
low-boiling
low-bracket
low-caking
low-capacity
low-carbon
low-cloud
low-coal
low-coercitivity
low-coherence