Then they fly out north for another couple of hours to drop off fuel at a fuel "cache" and then fly back again - and that's all before they can start to head out to us.
然后，他们又往北飞行数小时，去给一个加油站送燃料，随后返回——这些是飞往我们这里之前飞机要做的所有事情。
Cash for Clunkers was designed to boost the sagging sales of American automakers and take vehicles with low fuel economy off the road.
旧车换现金方案的目标，是要刺激销售萎靡不振的美国汽车市场，并汰换掉路上低燃料效能的车辆。
The millions of acres required to meet U.S. transportation fuel needs would not take the form of one huge ocean patch, but would instead spread across many locations off the U.S. coasts.
他指出，用以解决美国运输燃料需求的数百万亩藻类生产基地将不会采用像巨大海洋贴片的方式，而是会分散在美国东西海岸的很多地方。
We believe it is possible to build an aircraft that uses less fuel, gives off fewer emissions, and is quieter, and we are working on the technologies to create that aircraft.
我们有信心制造出使用更少燃料、排放更少气体、运行更为安静的航天飞机，而我们也正致力于实现这个伟大的目标。
Soon, the water had burned off and the fuel rods were exposed -- allowing them to emit levels of heat and steam that can melt the reactor's core.
水很快蒸发殆尽，燃料棒部分露出冷却，这样可将熔毁反应堆核心的热量和蒸汽散发出来。
WHEN an airliner takes off for a transatlantic flight it needs to carry some 80 tonnes of fuel, which accounts for around one-fifth of its weight.
一架飞越大西洋的飞机大约需要携带80公吨的燃料，这约占飞机重量的五分之一。
Wilbur Wright travelled just 260 metres on the longest flight that day; whereas Mr Piccard is off around the world, under electric power, using no fuel at all.
那天，维尔博•莱特在空中最远只飞行了260米，当Piccard先生靠着电力环游世界时，将什么燃料也不用。
With a similar fuel load the KC-30 can take off from a 6,100-foot runway compared with the 8,000 feet needed by the Boeing, he says.
他表示，在装载（和KC-767）相同燃油的情况下，KC-30能从6100英尺长的跑道上起飞，而KC-767需要8000英尺。
But once a solid-fuel rocket is ignited, it is off like a firework and keeps going until all the fuel is burned up.
但是一旦固体燃料火箭发动机被点燃，它将象二踢脚一样发射出去并一直跑，直到全部燃料烧完为止。
For a very long flight about half the fuel being carried on take-off is needed simply to carry the fuel required to carry the passengers.
对一个飞行距离超长的航班来说，起飞时所装有的燃料中有一半之所以需要是因为载这么多乘客按规定需要装这么多燃料。
While Nasa's focus was on how to prevent the insulating foam breaking off, concerns also emerged earlier this year about the build-up of ice on the outside of the fuel tank.
正当美国宇航局将工作重点放在如何防止泡沫绝缘材料脱落时，今年年初人们又开始担心燃料箱外侧集结的冰是否也会对航天飞机的飞行安全构成威胁。
NextGen will allow planes to make what is called a continuous-descent approach (CDA), essentially letting them turn off their engines, saving tons of fuel and reducing pollutants.
次世代可允许飞机采取被称国持续降落进场（CDA）的动作，从而事实上关闭引擎，节约燃料，减少污染物排放。
But at the same time it is talking a green game and showing off new fuel-sipping technologies.
但是同时，一场绿色环保竞争和汽车燃料啜饮技术的展示也在其内部展开。
As the star begins to run out of fuel, its core becomes smaller and hotter, boiling off its outer layers.
当恒星逐渐缺少能源，它的核心部分变得越来越小，温度逐渐升高，同时使外层物质挥发。
It comes from a variety of sources, including fossil fuel production and even farming. Cows give off methane, ya know, after they eat.
大气中的甲烷有多种来源，包括化石燃料燃烧和农牧业活动，比如奶牛在进食后就会排放这种气体∶-。
The particles the fuel gives off, which travel faster than the speed of light in water, can as a result produce a particular type of light, harmless in itself, called Cerenkov radiation.
这些乏燃料释放出的粒子，它们的速度要快于光速在水中的速度，因此会产生一种名为切伦科夫(契伦科夫)射线的本身无害光线。
To calm the fears of the fossil-fuel industry, Waxman reduced the amount of carbon allowances that would be auctioned off to companies, and would give more of them away for free.
要安抚受到惊吓的矿物燃料行业，维克斯曼削减了本应拍卖给这些公司的碳排放限额，而是免费颁发其中的大部分限额。
The pool cooling water must be continuously circulated. Without circulation, the still thermally hot irradiated nuclear fuel in the storage pools will begin to boil off the cooling water.
池中的冷水必须连续循环，如果不循环的话，贮存池中非常热地热放射性核燃料就会将冷水烧沸。
That programme was about “weaponisation”: the fiddly business of making a device that can set off a chain reaction in nuclear fuel.
该计划致力于武器化：虽然制造在核原料中引发链式反应的设备是一件高精细度的工作。
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。
On really long flights, fuel can account for 40% of a plane's take-off weight, so that around 20% of the fuel is used to carry the rest of the fuel.
在特别长的飞行时，燃料可以占到飞机起飞重量的40%，所以大约有20%的燃料时用来运输其它燃料的。
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。
With the cooling system down, the water that surrounds the nuclear fuel rods began to burn off.
在冷却系统失灵的情况下，核燃料棒周围的水开始蒸发。
Egevang was surprised to find that the birds often stop for a month in the open North Atlantic Ocean, probably to "fuel up" on fish and small crustaceans before setting off to cross the tropics.
艾治汪惊奇地发现，燕鸥经常在北大西洋可以停留近一个月。 他推测燕鸥可能在这段时间捕捉一些鱼类和小型的甲壳类海洋生物，能量得到充足补充后再动身穿越热带地区。
Investors shrugged off the 4.3% fall off in the Shanghai Composite Index, opting to focus on a surprising U.S. report showing the economy gulping more fuel than expected - a welcome sign of life.
投资者没有理会上证综合指数4.3%的跌幅，而是将目光转向了美国经济出乎意料的好于预期的报告上，这是一个值得欢迎的迹象。
Investors shrugged off the 4.3% fall off in the Shanghai Composite Index, opting to focus on a surprising U.S. report showing the economy gulping more fuel than expected - a welcome sign of life.
投资者没有理会上证综合指数4.3%的跌幅，而是将目光转向了美国经济出乎意料的好于预期的报告上，这是一个值得欢迎的迹象。
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