oilpalmn.油棕
oiln.油;油画颜料;奉承话v.涂油;溶化;加油
oil base ready mixed paint-matt油性无光调和漆
oil-water partition coefficient油-水分配系数
oil-drainage nitrogen-filling排油注氮
Oil spray trace indicating device油液航迹显示器
oil information management system油料信息管理系统
oil technology service enterprise石油技术服务企业
oilfield power saving reformation油田节电改造
oil/mineral/coal extraction石油/矿物/煤的开采