宝马的这款新两升引擎最初出现在她的Z4运动车上，该引擎比被它取代的三升引擎更有动力，而且有比三升引擎高出20%的燃油效率。
The German carmaker’s new two-litre engine, which will be seen initially in its Z4 sportscar, is more powerful than the three-litre motor it replaces and 20% more fuel efficient.
宝马的这款新两升引擎最初出现在她的Z4运动车上，该引擎比被它取代的三升引擎更有动力，而且有比三升引擎高出20%的燃油效率。
The German carmaker's new two-litre engine, which will be seen initially in its Z4 sportscar, is more powerful than the three-litre motor it replaces and 20% more fuel efficient.
现代运动用滑翔机的机翼长而细薄，拥有最佳的空气动力学效率，其升阻比达到50：1。
A modern sports glider, with long, slender wings, is the most aerodynamically efficient aircraft, with a lift-to-drag ratio of around 50:1.
应用推荐