two-beam
two-bit
two-by-two
two-carrier
two-channel
two-color
two-component
two-coordinate
two-course
two-dimensional
  two-directional
two-element
two-entry
two-field
two-fingered
two-fluid
twofold
two-frequency
two-gate
two-grid
two-head

    two-directional amplifier

    двунаправленный усилитель