three-stage
three-station
three-step
three-throw
three-tier
three-tiered
three-two-one
three-unit
three-way
three-wire
  threshold
thresholded
thresholding
threw
throat
throttle
throttler
throttling-and-displacement
through
through-coolant
through-feed

    threshold error

    допустимая ошибка рассогласования