They needed more fuel, and it caused more air pollution.
它们需要更多的燃料，这造成了更多的空气污染。
And just as cars are growing more fuel-efficient, Americans are driving less.
随着汽车越来越省油，美国人也越来越少驾车出行。
Today's diesels are sturdy, smooth and up to 40% more fuel-efficient than petrol engines.
今天的柴油机不仅耐用美观，而且比汽油发动机节油40%。
We could build a better "MkII" buggy based on what we learnt: a two-seater with more fuel capacity.
基于我们的教训，也许可以造出更好的冰车-不妨叫它‘MKII’。 它是双座的、可携带更多燃料。
That makes Dr Goudey's new device a more fuel-efficient way to fish than the traditional method.
因此，Goudey的新装置于传统捕捞方式相比，无疑是更省油的办法。
We've merely put more fuel in the tank and raised expectations for our ultimate outcome at Ticketfly.
我们只是往油箱里加了更多的油，并且提高了我们对Ticketfly的最终成果的预期。
But most importantly, like stoking a fire, we must constantly add more fuel to keep the fire vigorous.
但最重要的是，就像生火，我们得长时间添加燃料以保持火越烧越旺。
Customers could also receive tax rebates for purchasing the more fuel-efficient electric vehicles.
消费者可能还会由于购买这种更节省燃料的汽车而获得减税的优惠。
The line of reasoning goes like this: small cars may be more fuel-efficient, but big cars are safer.
这种说法的理由是：车小更省油，车大更安全。
Mister Fulton would learn that he could ride about five hundred sixty kilometers without needing more fuel.
富尔顿先生将了解到，在不需要更多汽油的情况下，他可以再行驶560公里。
Typically, spacecraft take three days to reach the moon, but need more fuel to slow down once they get there.
通常，航天飞船需要三天到达月球，但到达后却需要更多燃料来减缓着陆的速度。
While it does require a small amount of fuel to start the engine, you actually save more fuel if you coast.
虽然启动引擎确实需要少量的油，但如果你滑行的话，你实际上可节省更多的油。
Only more fuel-efficient vehicles, better public transport, and electric cars will get us off the oil hook.
只有更多的高效能交通工具，更好的公共交通和电力车会让我们摆脱石油麻烦。
Rogers also takes to task the U.S. automakers and their inherent aversion to creating more fuel-efficient cars.
罗杰斯还指责了美国汽车厂商，以及它们对节能车与生俱来的敌对态度。
"Electric cars are one of a suite oftechnologies that are making vehicles cleaner and more fuel efficient, " hesaid.
“电动车是使汽车更清洁、燃油效率更高的一整套技术中的一种。” ，他说。
Chrysler is now cutting production by almost a quarter and readying new, more fuel-efficient vehicles for market.
克莱斯勒目前减产大约四分之一，并且将推出新型节油汽车。
More air allows more fuel to be added, creating bonus horsepower without requiring a bigger engine and more cylinders.
更多空气进入允许更多燃料参与燃烧，进而在无需更大发动机和汽缸情况下输出强大马力。
Oxygen from the air then combines with carbon and hydrogen atoms to release yet more heat, which breaks down more fuel.
然后空气中的氧气与二氧化碳和氢原子结合并释放出更多的热量，这些热量又可以使更多燃料的烃链断裂。
Cuba is gradually augmenting its fleet of thirsty Soviet buses and trucks with new, more fuel-efficient Chinese models.
古巴正逐渐使用新型节能的中国款式来增强本国耗油量大的各类苏式巴士车与卡车。
Compared to the A-12, the SR-71 was larger, carried more fuel, and featured sharp sides to improve both stability and stealth.
相比a- 12,SR - 71体形更大，机载燃料更多，其具有特色的尖锐侧翼有助于提高稳定性和隐形能力。
U.S. carmakers are rushing to add more fuel-efficient smaller vehicles and hybrids to their fleets in the immediate future.
美国汽车制造商正急于尽快地生产更多的燃料效率的小型车辆和混合动力车型。
A secondary benefit is getting gas-guzzling old clunkers off the road and replaced with more fuel-efficient band new models.
一个间接的好处是将大量耗油的老旧汽车从道路上清除，代之以更新型、更有效使用燃料的新汽车。
Without Opel, GM's promises to build a fleet of smaller and more fuel-efficient cars in North America would lack conviction.
没有了欧宝，通用汽车要在北美开发一批小型清洁汽车的承诺就变得没有说服力了。
That is why a slightly noisier alternative design by the same researchers that is even more fuel-efficient shows most promise.
所以，同样由研究人员提供的噪音稍大、燃料利用率高的备选方案的前景似乎最光明。
The central body of the plane is made entirely of carbon composite material, which makes the plane lighter and more fuel efficient.
机身主体全部由碳合成材料制成，因此重量更轻，更加省油。
This would make it harder for companies to specialize in larger vehicles that may consume more fuel but may also be more profitable.
这将使得企业更难专攻大型汽车，它耗油更多但利润也更高。
The industry has already been developing more fuel-efficient engines and other solutions which are more respectful of the environment.
汽车业已经研发更节能的发动机和其他对环境更有益处的解决方法。
Aviation: Emerging technologies are ushering in more fuel-efficient, comfortable and exotic aircraft. Get ready for the future of flight.
航空业：未来飞机将迎来更高能效、更加舒适、更加奇幻的新兴技术时代，做好准备迎接吧。
Dr Venter reckons that even with existing technology, it should be possible to turn out ten times more fuel per hectare than can be garnered from maize.
文特尔博士认为，即使使用现有技术，每公顷藻类所能生产出来的燃料也应有可能比玉米多十倍。
Dr Venter reckons that even with existing technology, it should be possible to turn out ten times more fuel per hectare than can be garnered from maize.
文特尔博士认为，即使使用现有技术，每公顷藻类所能生产出来的燃料也应有可能比玉米多十倍。
应用推荐