onflow
on-gage
on-going
on-hook
on-land
on-line
on-link
on-load
on-machine
on-main
  on-off
on-orbit
on-path
on-peak
on-period
on-port
on-position
on-premise
on-receipt
on-resistance
on-scale

    on-off thermostat

    двухпозиционное термореле