oiltrapn.捕油器(集油槽)oiln.油；油画颜料；奉承话v.涂油；溶化；加油oil contaminated wastewater含油废水oil-pressure warning unit油压报警器oil of Rhizoma Atractylodis苍术挥发油oil-gas geochemical field油气地球化学场oil-blast circuit breaker油灭弧断路器oil bath/dry air cleaner油浴／干式组合空气滤清器oil-gas genetic mechanism油气成因oil agglomeration flotation油团聚浮选Oil won't mix with water.Oil-fired central heating燃油集中供热设备