oiltrapn.捕油器(集油槽)
oiln.油;油画颜料;奉承话v.涂油;溶化;加油
oil residua thermal reaction渣油热反应
oilfield produced wastewater采油废水
Oil well situation managment工况管理
oil and natural gas industry石油天然气产业
oilless ultra-vacuum valve无油超真空阀门
oil pressure gauge feed pipe压表进油管
Oils for perfumes and scents制香料香水用油
oil palm empty fruit bunches油棕榈空果串纤维