циркуляційна масляна система
circulating water
engine oil reservoir / engine oil tank
oil gauge / oil-gauge
lubrication oil system
oil system failure
oil system block
oil system hose
oil system pipe
oil system
fire extinguishing system sprinkler system and fire alarm system
air-oil shock strut
ammonium nitrate-fuel oil (ANFO)
A-oil
diluted oil
fuel oil barge (YO)
fuel-oil tank
gear-type oil pump
hydraulic oil
marketable oil
oil
oil carrier
oil filter
oil pan
oil pump
oil slick
oil storage barge (YOS)
oil strainer
oil sump
oil tanker
oil well
oil-level gage
petroleum, oil, lubricants (POL)