短语词组短语lubricity improver 润滑改进剂Natural lubricity 自然润滑lubricity strong 润滑性好lubricity coefficient 润滑系数structural lubricity 或称结构润滑dry lubricity 干燥润滑性Lubricity Additives 性添加剂lubricity agent 润滑剂fuel lubricity 燃料润滑性 返回 lubricity