Oillaux瓦约
oiln.油;油画颜料;奉承话v.涂油;溶化;加油
Oil--gas exploiting油气开采
oil filter screen clamp滤油网夹
oil-fired superheater燃油过热器
oilfield polymer sewage采油污水
oil fuel injecting pump燃油喷射泵
oil-immersed generato油浸发生器
oil tank breather valve油罐呼吸阀
Oil contamination level油液污染度
oil predrilling project石油钻前工程
oil logging enterprises石油测井企业