one-stage
one-story
one-stream
one-to-one
one-track
one-valued
one-valve
one-way
one-wire
onflow
  on-line
online
on-off
on-peak
on-period
on-port
on-position
onset
on-site
on-stream
on-top

    on-line plotter

    графопостроитель с управлением от вычислительной машины