发动机结构和工作条件对排放的影响与燃料的影响相比，前两者处于主导地位，所以以往柴油机排放控制技术的研究突出了改进发动机结构设计和调整发动机工作?。
Their influencing regularities have been elucidated, which leads to the way of fuel composition regulation as well as the methods of fuel property optimization and fuel application in this paper.
发动机结构和工作条件对排放的影响与燃料的影响相比，前两者处于主导地位，所以以往柴油机排放控制技术的研究突出了改进发动机结构设计和调整发动机工作?。
Their influencing regularities have been elucidated, which leads to the way of fuel composition regulation as well as the methods of fuel property optimization and fuel application in this paper.
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