O 開頭單詞
oil refinery [油氣] 煉油廠
oil refiner 煉油器，凈油器
oil reference price [經(jīng)濟學(xué)]石油參考價格
oil red stain [經(jīng)濟學(xué)]油紅染料
oil recovery efficiency [能源科學(xué)技術(shù)]驅(qū)油效果采油效率
oil recovery [油氣] 油回收；采油
oil reclaimer [機械工程]廢油再生裝置
oil quenching [機] 油淬火（油急冷處理）
oil quality monitoring car [經(jīng)濟學(xué)]油料質(zhì)量監(jiān)測車
oil purifier 濾油器
oil pumping unit 抽油機
oil pumping can [經(jīng)濟學(xué)]泵式油壺
oil pumping n. [油氣] 抽油；泵油；（活塞環(huán)）泵油作用
oil pump relief valve spring [機械工程]油泵安全閥彈簧
oil pump outlet valve [機械工程]油泵出油閥
oil pump outlet pipe [交通運輸工程]機油泵出油管
oil pump inlet valve [機械工程]油泵進油閥
oil pump gun [經(jīng)濟學(xué)]油泵槍
oil pump [機] 油泵；機油泵；送油泵
oil proof 耐油