Proton exchange membrane fuel cells use a perfluorosulfonic solid polymer film as electrolyte.
质子交换膜燃料电池采用全氟磺酸固体聚合物膜为电解质。
But will they be allowed to use fuel cells on planes?
不过，他们会被允许在飞机上使用燃料电池吗？
Even hydrogen fuel cells still have their supporters.
即便是氢燃料电池仍然有其支持者。
Stationary fuel cells are the largest, most powerful fuel cells.
固定式燃料电池是最大、功率最强的燃料电池。
Ceramic fuel cells offer many advantages over other energy systems.
与其他能源系统相比，陶瓷燃料电池有很多优势。
Fuel cells are also being used to power unmanned surveillance drones.
燃料电池还可以用在无人驾驶侦察机上。
Fuel cells offer several advantages over traditional thermal power plants.
与传统的热电厂相比，燃料电池有种种优势。
The hydrogen could then be used as a fuel source for vehicles or fuel cells.
之后，氢气能被用作汽车和燃料电池的燃料原。
In Manchester, Mike Masonadvocated fuel cells that use solid-oxide technology.
在曼彻斯特，Mike Mason倡导过一种使用固态氧化物技术的燃料电池。
Hydrogen fuel cells work by combining hydrogen and oxygen to produce electricity.
氢燃料电池通过氢氧结合产生电能。
All fuel cells have the same basic configuration; an electrolyte and two electrodes.
所有的燃料电池有相同的基本结构，包括一种电解质和两种电极。
If pure hydrogen is used as a fuel, fuel cells emit only heat and water as a byproduct.
如果用纯氢作燃料，副产品只有热和纯水。
The first two fuel cells were installed in the prime minister's residence in April 2005.
2005年4月，首相的居所里安装了最早的两台燃料电池。
The new World Trade Center towers in new York City will be powered in part by fuel cells.
纽约市新世界贸易中心大厦将部分地由燃料电池提供电力。
But batteries and fuel cells have only recently become light enough to open up a large market.
但干电池和燃料电池技术直到最近才取得突破——其重量大大减轻，从而打开了市场的大门。
Powering commercial buildings with fuel cells can cost hundreds of thousands or millions of dollars.
用燃料电池向商业办公楼提供电力，成本可达即数十万或数百万美元。
Fuel cells have three main applications: transportation, portable USES, and stationary installations.
燃料电池有三种主要用途：运输工具、携带用电源、固定装置。
Methanol, a liquid fuel, is easily transportable, like gasoline, and could be used in automobile fuel cells.
而甲醇，作为一种与汽油一样容易输送的液体燃料，可用于车用燃料电池。
Laptop computers, cellular phones, video recorders, and hearing AIDS could be powered by portable fuel cells.
笔记本电脑、手机、录影机和助听器都能使用燃料电池供电。
Hydrogen, which can be made electrolytically from water and used to power fuel cells, is difficult to handle.
电解水产生并给燃料电池供能的氢难以处理。
That could be used in fuel cells to make electricity or to power clean vehicles without endangering the climate.
它可运用在燃料电池里进行发电，也可以在坏天气里为清洁汽车提供能量。
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。
Fuel cells, which are quiet and clean, can run continuously, so companies can recover their investment more quickly.
燃料电池即安静又清洁，又可连续运行，所以企业很快可以收回成本。
The plane will harvest solar energy throughout the day, storing energy inside fuel cells that will be drained overnight.
这架无人机将在白天的时候获取太阳能，并将其储存在燃料电池中，晚上的时候就用这些能量来工作。
Eventually, it is hoped, fuel cells running on hydrogen will take the place of the ubiquitous internal combustion engine.
最终情况很有可能是——氢燃料电池取代现在无所不在的内燃机。
Instead of buying fuel cells, companies can just buy the electricity the cells produce, with rates locked in for 10 years.
企业可以不用购买燃料电池，只购买燃料电池发的电能就可以，供电价格10年内不变。
But fuel cells remain an expensive way to generate electricity, and they don't yet make economic sense for all businesses.
不过，用燃料电池发电仍然十分昂贵，并不是对所有公司都划得来。
Delivered to a local filling station, such liquids can be readily reformed on site into pure hydrogen for powering fuel cells.
把它们传输到各地的汽车加油站，这种液体可以在原地被轻易的转化成可驱动燃料电池的纯氢气。
We should certainly increase hybrid ownership, but I believe that hydrogen fuel cells are the breakthrough technology we need.
应该增加混合燃料汽车的数量，但我个人认为氢燃料才是世界需要的具有突破意义的科技应用。
In the future, fuel cells could power our cars, with hydrogen replacing the petroleum fuel that is used in most vehicles today.
在将来，我们的汽车可以用燃料电池驱动，而氢气会替代今天多数车辆使用的石油燃料。
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