制油 Traditional form: 製油 Pinyin (reading): zhìyóu Definitions: to extract (vegetable) oil; oil extraction Characters: 制 - system; to establish; to manufacture; to overpower 油 - oil, fat, grease, lard; oil paints Traditional characters: 製 - system; to establish; to manufacture; to overpower 油 - oil, fat, grease, lard; oil paints