Fuelle菲勒fueln.燃料；刺激因素vt.供以燃料vi.加燃料fuel substitute代用燃料fuel economiser节油器Fuel properties燃料特性fuel-oil tank燃料油储罐fuel oil burner燃料油喷嘴fuelling system供气系统Fuel controller燃油调节器fuel efficiency燃料效率fuel preheating燃料预热fuel eennomizer省煤器