Lasers also need chemical fuel or electrical power which is not readily available in space.
激光需要的化学燃料或者电力还没办法轻易安置在太空。
One might think that fusion propulsion requires some exotic fuel to propel a rocket a million-or-so-times more energetically than standard chemical fuels.
有人可能会认为聚变推进需要一些能量高于标准的化学燃料一百多万倍的稀有燃料推进一个火箭。
Japanese researchers have used a high-speed atomic force microscopy (AFM) to shoot a movie of the tiny rotating enzyme that produces the chemical fuel for cells.
日本研究者们使用了一种高速原子力显微镜(afm)拍摄一部小旋转酶给电池产生化学燃料的电影。
A team of MIT researchers has found a novel way to mimic the process by which plants use the power of sunlight to split water and make chemical fuel to power their growth.
麻省理工学院的一个研究小组发现了一种新颖的方式来模仿植物利用阳光的能量把水分解，形化学燃料来加速其成长的过程。
The effect of different kind of composite solidify agent on property of chemical fuel was studied and the proper process conditions and formula in commercial process were also determined.
研究了不同复合固化剂对固体化学燃料各项性能的影响，确定了适合工业化生产的工艺条件和合理配方。
Chemical energy gasoline, fossil fuel can be burned, converted to heat, converted to electricity.
化学能，汽油，矿物燃料能被燃烧，转化成热量，再转化成电。
Project Goals: Develop a combined microbial and electrochemical catalytic system that converts hydrogen and carbon dioxide into butanol, and find a chemical method to convert butanol into jet fuel.
项目目标：将微生物与电化学催化系统结合起来，利用氢气和二氧化碳生产丁醇，再利用化学方法将丁醇转化为航空燃料。
In it, electrodes generate chemical reactions that cleanse the bowl and turn organic waste into carbon dioxide and hydrogen that can be stored in a fuel cell for use at night.
在系统里，电极产生化学反应，清洁厕盆并将有机废物转化成二氧化碳和氢，储存在燃料电池里，供马桶夜间使用。
Under anaerobic conditions (where oxygen is absent) they metabolise the fuel by feeding off it and in doing so produce natural chemical reactions that produce a current.
在厌氧条件下(比如缺氧的地方)通过取食产生新诚代谢并以此引起化学反应产生电流。
Yet while this sort of chemical recipe was already shown in the 90s to work with a pure gas, the sort of emissions that come from a fossil fuel power station are typically full of impurities.
然而，尽管这种'纯'气体方式的化学处理方案在上世纪90年代已经问世，但化石燃料电厂排放出的废气通常杂质很多。
The major difference between these two power generators is that the chemical energy of the fuel cell is converted directly to electrical power without intermediate conversion first to heat.
主要的区别在于，燃料电池的化学能量能直接转化成电能而不需要先转化成热能。
It thus needs to carry less fuel than a rocket, and no chemical oxidant to burn that fuel, as a rocket would.
这种火箭需要携带的燃料也减少了，并且不需要化学氧化剂。
But while batteries store all the chemicals needed for the necessary chemical reactions in a sealed package, fuel cells use an external fuel source and air from the atmosphere.
电池是在密封容器存贮化学反应必需的化学品，但燃料电池却使用外部燃料和大气。
Other Japanese automakers have been working to create fuel cell cars, which produce electricity through a chemical reaction between hydrogen and oxygen, with water the only by-product.
其它日本汽车制造商已经开始着手制造燃料电池汽车，这种汽车通过氧和氢的化学反应来发电，而这种化学反应的副产品只有水。
When a fuel unites with oxygen, we say the fuel burns; what is really happening is that chemical energy (fuel and oxygen) is changing to heat energy.
当燃料与氧气结合，我们就说燃料开始燃烧了，实际发生的是化学能(燃料与氧气)转化成热能。
Fuel cells combine hydrogen and air to produce electricity by running them through a chemical catalyst. The only byproducts are heat and water.
燃料电池让氢与空气通过催化合成反应产生电力，唯一的副产物仅是热量和水。
The scientists have also considered the possibility that the fuel to fire the chemical reaction in the trees could come from human waste or food waste.
与此同时，科学家还考虑将“人类废弃物”变成新能源，运用在生物体发光的项目中，如此说来，电影《阿凡达》中五颜六色的“荧光树”不再是虚拟的，未来有可能成为现实呢！
Scientists at the Centers for Disease Control and Prevention tested the formula for the presence of perchlorate, a chemical used as the main ingredient in solid rocket fuel.
疾病预防控制中心的科学家专门针对高氯酸盐对配方奶进行了检测。
The liquid byproduct containing the lignin is dried and used as a fuel and the paper product created from chemical pulp is used in materials needing to be stronger.
副产品的液体含有木质素是干燥和用作燃料和产品创造了从化学浆是在材料的使用需要更加强大。
Compared with ordinary chemical batteries, fuel cells can replenish fuel, usually supplemental hydrogen.
和普通化学电池相比，燃料电池可以补充燃料，通常是补充氢气。
The chemical energy in a gram of glucose is nearly half the amount available from petrol, a famously energy-dense fuel.
一克葡萄糖所含有的化学能量相当于半克汽油能产生的能量，原油是众所周知的能源密集型燃料。
A diesel engine can not utilize all the chemical energy of the fuel nor can any other heat engine.
柴油机不能利用燃料的全部化学能，任何别的热机也做不到这一点。
Galvanized barrels or packing containers of medicine, fuel oil, edible oil or other chemical products shall not be used.
不应使用镀锌桶或盛装过药品、燃料油、食用油或其他化工产品的包装容器。
A fuel cell is a device that can convert chemical energy to electricity. It generates electricity from fuel such as hydrogen, natural gas and other hydrocarbons.
燃料电池是将化学能直接转化为电能的电化学装置，它以氢、天然气及碳氢化合物为燃料，从而产生电能。
Sealing requirements for diesel engines, fuel systems and chemical plants.
适用于柴油发动机、燃料系统及化工厂的密封需求。
SOFC power generation system with chemical looping combustor is a kind of new solid oxide fuel cell combined cycle.
化学链式燃烧器和固体氧化物燃料电池相结合的发电系统是一种新型联合循环。
SOFC power generation system with chemical looping combustor is a kind of new solid oxide fuel cell combined cycle.
化学链式燃烧器和固体氧化物燃料电池相结合的发电系统是一种新型联合循环。
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