"And because of that about 100 million people were still trapped in poverty because of higher food and fuel prices,".

VOA: standard.2009.04.24

You take fuel, rather you take something that's warm, and you put it in contact with the atmosphere, it cools down.

改变约束,继续加热,气体膨胀。

麻省理工公开课 - 热力学与动力学课程节选

And, we'll talk about fuel cells later in the semester when we do the unit on redox reactions and electrochemistry.

这学期我们随后会讨论燃料电池,当我们讲到,关于氧化还原反应和电化学单元时。

麻省理工公开课 - 固态化学导论课程节选

However,most agencies can't afford those. You have to have a hangar, it costs quite a bit for maintenance and fuel."

VOA: standard.2010.01.01

So, fuel economy and environmental conservancy make a lot of sense if you care about such things, of course.

所以，油价和环境保护,是很有意义的,如果你关心这样的事，当然会更好。

麻省理工公开课 - 固态化学导论课程节选

Even more people,he says, are still suffering from the increase in food and fuel prices one year ago.

VOA: standard.2009.04.24

And, you've undoubtedly heard a lot in the public press, and even in the political dialogue such as it is these days that hydrogen might be on environmentally friendly fuel.

毫无疑问你已经在公开新闻上，甚至在政治的对话上听到过了,比如最近这些天,氢气是一种环境友好的燃料。

麻省理工公开课 - 固态化学导论课程节选

The cost of materials,bait and fuel, and the price of lobsters hasn't kept up with it.

VOA: standard.2010.07.20

Authorities say thousands of people remain stranded in villages with food and fuel running low.

VOA: standard.2010.08.02

pledging to improve access to health care while lowering food and fuel prices.

VOA: standard.2009.07.19

"And,high food prices and fuel prices, as well as drought have had a severe impact on the most vulnerable groups in Afghanistan, many of whom are also living in very poor and inadequate housing.

VOA: standard.2009.09.13

Under that accord, given final approval by the U.S.Congress last year, India agreed to open non-military aspects of its nuclear program to international inspections, clearing the way for U.S.sales of nuclear technology and fuel to India.

VOA: standard.2009.07.15

We traveled slowly to save fuel and because we had promised our worried parents that we would not drive fast.

VOA: special.2010.01.30

In the United States, higher fuel prices come just as General Motors and Chrysler show signs of recovery after their reorganizations.

VOA: special.2011.03.11

He loaded the motorcycle with extra cans of fuel and water and began his trip across the desert.

VOA: special.2009.01.14

Government rescues of banks considered "too big to fail" angered the public and helped fuel a conservative movement.

VOA: special.2010.04.16

But he was recaptured. The lifeboat ran out of fuel and had to be pulled by the U.S.S.Bainbridge.

VOA: special.2009.05.27

He explains that lead can enter the ground from leaded paint and leaded fuel and from industry.

VOA: special.2009.06.09

These directions should be read and understood before using any equipment that burns fuel inside a home.

VOA: special.2010.02.02

And,of course, its products must satisfy the public, as well as new government rules for fuel economy.

VOA: special.2009.06.05

Officials say the solid-fuel rocket could reach Israel, southeastern Europe and American bases in the Middle East.

VOA: special.2009.05.23

Corn,or maize,is mostly fed to animals or made into ethanol fuel and high-fructose corn syrup.

VOA: special.2010.12.07

But he is hard at work. He and his team currently are trying to make algae that can change carbon dioxide back into fossil fuel.

VOA: special.2010.07.20

The company has also started reusing materials and reducing the fuel use of its trucks.

VOA: special.2009.07.17

Carbon dioxide is released in cement manufacturing when fuel is burned and limestone is heated.

VOA: special.2009.12.01

Race cars burn a lot of fuel, and create a lot of air pollution.

VOA: special.2009.11.03

Traditional buses that run on diesel fuel release harmful carbon dioxide and other pollutants.

VOA: special.2009.09.07

And there was a new fuel, a mixture of liquid ammonia and liquid oxygen.

VOA: special.2010.07.07

Before that time, submarines had operated on diesel fuel and electricity.

VOA: special.2010.06.11

He stopped eleven times for fuel, food and a little sleep.

VOA: special.2009.03.18