unistor
unit
uni-tank
unitary
unit-block
unit-directional
unite
united
unitgraph
unit-hydrograph
  unit-impulse
unitization
unitize
unitized
unitizer
unitizing
unit-load
unit-mass
unit-of-use
unit-package
unitrain

    unit-impulse response

     реакция на единичный импульс

     импульсная переходная характеристика