adj.耗油低的；燃料消耗低的
Diesel engines are the most fuel efficient vehicle power source available. 柴油发动机是现有燃油效率最高的机器。
Dramatic innovations in aircraft design will allow faster, smoother, and more fuel efficient means of air travel. 飞机设计中引人注目的革新将使空中旅行更迅捷、更平稳、更节能。
Dramatic innovations in aircraft design will allow faster,smoother,and more fuel efficient means of air travel. 飞机设计中引人注目的革新将使空中旅行更迅捷、更平稳、更节能。
Aerodynamic studies show a pickup truck is most fuel efficient with its tailgate up. 空气动力学研究显示出，小型敞篷卡车保留后箱盖时燃料的利用效率更高。
And I'll help our auto companies retool, so that the fuel efficient cars of the future are built right here in America. 另外，我也将帮助我们的汽车公司重新想辙，这样，未来的十分节省燃料的汽车将在我们美国生产出来。
