The twist angle of L shape piston ring directly influences the performance of diesel engine.
形活塞环的扭角对柴油机的性能有着显著的影响。
References are offered to the performance analysis of the type of diesel engine.
为该类型柴油机的性能分析提供了参考。
Premium protection, heavy duty diesel engine oil, for low emission, high performance engines.
重负荷柴油机油，提供优异的保护功能，用于低排放高性能柴油发动机。
Premium protection, heavy duty diesel engine oil, for low emission, high performance engines.
重负荷柴油机油，提供优异的保护功能，用于低排放高性能柴油发动机。
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