low-grade
low-gravity
low-heating-value
low-level
low-melting
low-molecular
low-pressure
low-reading
low-side
low-symmetric
  low-temperature
low-velocity
low-voltage
lube
lubex
luboil
lubricant
lubricate
lubrication
lubrification
luccu

    low-temperature carbonization

    низкотемпературная сухая перегонка, швелевание