下面那句不是描写润滑系统功用？ A. <br /> <br /> The lubrication system is used for collecting, cleaning, cooling and re-circulating oil in the engine. B. <br /> <br /> The main function of the lubrication system is to circulate and deliver oil to the surfaces of all the moving parts in order to reduce friction. C. <br /> <br /> If the lubricating system fails, not only will the engine stop, but also some parts are likely to be damaged beyond repair. D. <br /> <br /> The main components of lubrication system are oil pump, oil filters, main oil galleries, oil pan, oil pressure regulators, relief valve and oil coolers.