three-neck
three-phase
three-pole
three-port
three-position
three-program
three-step
three-terminal
three-vidicon
three-way
  three-wire
threshold
thresholder
threshold-extension
thresholding
throat
throttle
through
through-diffused
through-loss
throughput

    three-wire cord

    сетевой шнур с проводом заземления