two-frequency
two-gate
two-input
two-level
two-line
two-part
two-phase
two-port
two-position
two-side
  two-sided
two-signal
two-stacked
two-state
two-step
two-terminal-pair
two-tone
two-way
two-wire
TWT
TXD

    two-sided bidirectional network

    двусторонняя схема с двунаправленным установленным соединением