航空煤油发动机的尺寸经过优化设计，已经能够在发动机的最有效的操作点上提供巡航动力，进而从总体上提高燃料效率。
Thepetrol engine is optimally sized to provide the cruise power at its most efficient operating point, resulting in an improved fuel efficiency overall.
航空煤油发动机的尺寸经过优化设计，已经能够在发动机的最有效的操作点上提供巡航动力，进而从总体上提高燃料效率。
Thepetrol engine is optimally sized to provide the cruise power at its most efficient operating point, resulting in an improved fuel efficiency overall.
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