non-productive
non-Q-switched
non-quantized
non-radar
non-radiative
non-radioactive
non-ramming
nonramming
nonrandom
non-reactive
  non-reciprocal
nonreclaimable
nonrecoil
non-recoverable
nonrecoverable
non-recurrent
non-recursive
non-redundant
non-reflecting
nonreflection
non-reflexive

    non-reciprocal parametric amplifier

    невзаимный параметрический усилитель