oil gauge
油量计
油类相对密度测定计
油量表
油面计
油压计
油压表
油位计
量油计
石油比重计
油比重计
油表
油标
油面指示器
油尺
cinnamon oil cassia oil
Essential oil Volatile oil
Extract Oil of Lubricating Oil
oil bearing sewage in oil field8
Oil Extractor in Oil Field
oil shale and oil shale residue
ultraheavy oil as fuel oil
“Four delicacies”in chicken oil
150000DWT suez crude oil carrier
17% cut oil consumption 17%
Ⅰ oil formation in Xing’anling Group