短语词组短语fuel -oil system 燃油系统fuel pump oil pump 油泵fuel head oil barge 石油驳船fuel head oil 燃料油fuel cooled oil cooler 燃油冷却滑油冷却器;油冷滑油散热器;用燃油冷却的冷油器fuel with oil 以油为燃料 返回 fuel oil