offset-dependent
offshore
off-time
oil
oil-bearing
oilfield
oil-filled
oil-saturated
oil-water
omnidirectional
  on
on-board
onboard
one-coil
one-component
one-cycle
one-day
one-dimensional
one-frequency
one-layer
one-pass

    on site processing

    оперативная обработка, экспресс-обработка