low-hardening
low-head
low-heat
low-heat-of-hydration
low-high
low-I
low-impedance
low-inertia
lowland
low-latitude
  low-level
low-lift
low-light
low-light-level
low-lime
low-limed
low-loaded
low-loss
low-maintenance
low-manganese
low-melting

    low-level signal

    сигнал низкого уровня