two-source
two-stage
two-state
two-step
two-stream
two-sublattice
two-tape
two-terminal
two-terminal-pair
two-tone
  two-track
two-tube
two-turn
two-turntable
two-valley
two-wattmeter
two-wavelength
two-way
two-wire
two-zone
TWT

    two-track tape

    магнитная лента с двухдорожечной записью