O 开头单词

oil refinery [油气] 炼油厂

oil refiner 炼油器，净油器

oil reference price [经济学]石油参考价格

oil red stain [经济学]油红染料

oil recovery efficiency [能源科学技术]驱油效果采油效率

oil recovery [油气] 油回收；采油

oil reclaimer [机械工程]废油再生装置

oil quenching [机] 油淬火（油急冷处理）

oil quality monitoring car [经济学]油料质量监测车

oil purifier 滤油器

oil pumping unit 抽油机

oil pumping can [经济学]泵式油壶

oil pumping n. [油气] 抽油；泵油；（活塞环）泵油作用

oil pump relief valve spring [机械工程]油泵安全阀弹簧

oil pump outlet valve [机械工程]油泵出油阀

oil pump outlet pipe [交通运输工程]机油泵出油管

oil pump inlet valve [机械工程]油泵进油阀

oil pump gun [经济学]油泵枪

oil pump [机] 油泵；机油泵；送油泵

oil proof 耐油