炼油 liànyóu oil refining Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 这座城市以其先进的炼油技术而闻名。 zhè zuò chéngshì yǐ qí xiānjìn de liànyóu jìshù ér wénmíng. This city is famous for its advanced oil refining technology. Source: Dong Chinese Dictionary