基本信息 中文名称：燃油经济性标准 英文名称：Fuel economy standards 定义：用以衡量汽车行驶一定距离所消耗的燃油量的指标。
汽车工程师们一直都很清楚，设计小排量、重量轻的汽车是满足不断提高的燃油经济性标准最理想的途径。
Engineers have long known that designing smaller, lighter vehicles is an ideal way to meet tighter fuel-economy standards.
到2025年，美国汽车必须符合联邦法律规定的每加仑燃油行驶54.5英里的燃油经济性标准。
American automobiles must meet a federally mandated fuel-efficiency standard of 54.5 miles per gallon by 2025.
它的产品线中已经有五款混合动力车型，所以它不必像它的竞争对手一样，为了满足燃油经济性标准而急着要给车型瘦身减排。
Thanks to the presence of five hybrids in its lineup, it doesn't face the same pressure as its competitors to downsize its models to meet fuel economy standards.
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