All mechanical equipment must be lubricated in order to reduce friction and wear between the touching surfaces. For four-stroke motorcycle engine, the function of the engine oil play critical roles since the oil does not burn along with ... AM Zulkifli,Y Zulkefli,Y Mohd. Adnan 被引量: 2发...
Ramesh VaradarajCornellus H. BronsUSUS7732387 * 2005年5月12日 2010年6月8日 Exxonmobil Research And Engineering Company upgrading a heavy oil by adding a sulfonated oil which is produced by sulfonation of the light cycle oil; oil additives...
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