The nanotubes generate80 milliliters of hydrogen per hour per watt of ultraviolet light, a record for a photocatalyst-only system.
利用这种奈米管，每小时每瓦特紫外线可产生80毫升氢气，是纯光触媒系统中的最高纪录。
The research team modeled a facility capable of producing the hydrogen equivalent of 1 GW of continuous output, or 610 tons of hydrogen per day.
该研究团队模拟出了一个能连续平均产出氢气1gw或者每天产出氢气610吨的设备。
Low applied voltage, low conductivity of solution and small discharge gap are favorable for the production of hydrogen peroxide per unit electric energy.
低电压、低电导率以及小的电机间距有利于提高单位电量过氧化氢的产率。
There are just two hydrogen atoms per cubic centimeter on average in space, which poses no threat to spaceships traveling at low speeds.
太空中平均每立方厘米只有两个氢原子，这对低速飞行的宇宙飞船不构成威胁。
The energy for single hydrogen atom is negative 1312 kilojoules per mole.
单个氢原子的能量是-1312 千焦每摩尔。
The value of the critical density is very small: it corresponds to roughly 6 hydrogen atoms per cubic meter, an astonishingly good vacuum by terrestrial standards!
临界密度的值非常小：它相当于每立方米约6个氢原子，从地球上的标准来看这简直是真空！
In contrast, the dissociation energy of a bond for hydrogen, and molecular hydrogen is everywhere around us, we see 432 kilojoules per mole.
相反，氢分子在我们周围到处都是，一个氢分子的离解能，是432千焦每摩尔。
That process – usually 65 to 75 per cent efficient – should be sufficient to plug the gap until renewable sources of hydrogen become available, he says.
这一效率为65%至75%的工序应能足够填补氢空缺，直到生产氢的可再生能源出现。
Trulite won this contract to develop a system for the Navy that allows for substantial power capacity in a small package, with hydrogen storage capabilities greater than 2000 watt-hours per kilogram.
Trulite公司赢得该项合同以便为海军开发一个系统，该系统允许在一个小包装中有充实的动力容量，同时氢储存能力大于每千克200 0瓦特时。
So if I tell you that the energy for single hydrogen atom is negative 13 12 kilojoules per mole.
如果我告诉大家单个氢原子的能量，是负的，1312，千焦每摩尔。
The production of hydrogen from methane in converters will generate higher CO2 emissions per kilowatt hour since [hydrogen production] is an energy-intensive process.
因为氢生产是一种能量密集型工序，从甲烷获取氢每千瓦时将产生更多的二氧化碳。
If we want to talk about two hydrogen atoms, then we just need to double that, so that's going to be negative 2 6 2 4 kilojoules per mole that we're talking about in terms of a single hydrogen atom.
而要讨论两个氢原子，我们只需要把它乘以二，因此应该是负的，2624，千焦每摩尔，这就是单个的氢原子的情况。
Two molecules of methane, containing eight hydrogen atoms between them, will yield roughly one molecule of H2 – this gives an effective hydrogen yield of 25 to 30 per cent from the chemical process.
两分子甲烷含有8个氢原子，大约可生成一分子的H2，这使得该化学过程的实际氢生成量为25%至30%。
Harris points out that around 95 per cent of the world's hydrogen is already sourced from natural gas, using fossil fuel reformers that react methane with steam to produce hydrogen and carbon dioxide.
Harris指出，世界上几乎95%的氢是由天然气生产的，其方法是使甲烷与水蒸气在化石燃料转换器中发生反应生成氢和二氧化碳。
In fact, by drinking the recommended 8 glasses of water per day you've ingested about half a pound of the stuff: hydrogen.
事实上，在每天喝推荐的8杯水时你就会摄取半磅这种东西：氢气。
This could be estimated at 1000 litres of hydrogen for 330 grams of chlorophyll per day whereas for example colza produces roughly only 1000 litres of oil per hectare . . .
这种农场每天估计能够产生1000升氢气，而且只消耗330克叶绿素；而比如种植菜籽，每公顷土地才能产生大约1000升油。
The number of hydrogen atoms per unit volume divided by the number of hydrogen atoms per unit volume of pure water at surface conditions.
单位孔隙中氢原子数量与地面条件下单位体积纯水中氢原子数量的比值。
The high concentration of carbon oxide and hydrogen chloride produced by LPG is 80 per cent less than that produced by a petrol engine.
液化石油气所产生的高关注的碳氧化物和氢氧化物，比汽油引擎产生的还少百分之80。
The explosive potential (energy content per unit mass) of hydrogen is about twice that of the methane in natural gas.
氢的爆炸潜能(单位质量含有的能量)大约是天然气中甲烷的两倍。
A mixture of liquid hydrogen and liquid oxygen produces an exhaust with a speed as high as five kilometers per second.
液态氢和液态氧的混合物产生的排气速率高达每秒5公里。
Hydrogen storage alloys are mainly used in Nickel-Metal Hydride Batteries and the production scale of the products is 600 tons per year.
储氢合金粉主要用于镍氢电池，我公司该产品的年生产能力为600吨。
Hydrogen storage alloys are mainly used in Nickel-Metal Hydride Batteries and the production scale of the products is 600 tons per year.
储氢合金粉主要用于镍氢电池，我公司该产品的年生产能力为600吨。
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