发动机及其附件所用的润滑油是一样的。 A: The engine uses lubricating to assist the rest of the equipment. B: Lubricants for All the auxiliary equipment of the Engine are the same. C: Lubricants for the engine and the auxiliary equipment are the same

Which of the following is not a function of modern lubricants A: Reduced friction B: Heat insulation C: Sealing D: Heat dissipation