heavy duty diesel engine oil 重负荷柴油机油
military heavy duty diesel engine 军用大功率柴油机
heavy duty DI diesel engine 重型直喷柴油机
heavy-duty diesel truck engine 重载工作柴油汽车发动机
heavy-duty vehicle diesel engine 重型车用柴油机
heavy duty vehicle diesel engine 重型车用柴油机
With the upgrading of heavy-duty diesel engine oil, the requirement for properties of engine oil is strengthening, especially for antiwear property.
重负荷柴油机油的更新换代对油品抗磨性能的要求越来越高。
With the numerical simulation of heavy-duty diesel engine to strengthen performance, a CAD assembly model of cylinder head bolt is built based on the thread.
结合大功率柴油机性能强化的数值计算，在考虑螺纹的基础上建立了气缸盖螺栓的CAD装配体模型；
The specification and development of heavy-duty diesel engine oil in Europe, quality guarantee systems of automobile engine in Europe and American were presented.
介绍了欧洲重负荷柴油机油的规格、欧洲和美国车用发动机油质量保证体系和欧美柴油机油规格的差别及原因。
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