The problem is that the amount of energy required may significantly exceed that which the hydrogen can subsequently be used to generate.
问题是这些方法需要的能量可能比其生成的氢气能产生的能量高许多。
The researchers used what's called an ion microscope to compare the amount of normal hydrogen in the moon rocks to the amount of the hydrogen isotope deuterium, which carries an extra neutron.
研究人员利用所谓的离子显微镜来比较月球岩石中正常的氢元素含量及同位素氘的含量,元素氘比氢多带一个中子。
The expected amount of hydrogen loss matches the net excess of oxidized material on Earth today.
科学家估算出的氢气总逃逸量与地球今天氧化物的净剩馀量刚好相吻合。
This is a known and anticipated process, but the amount of hydrogen gas produced was unknown because the operators didn’t know the exact temperature of the fuel rods or the water level.
这个过程是被预见的,但是大量的氢气是否会产生无法预测,因为操作员并不知道燃料棒的确切温度,也不知道水位线到底多高。
This is a known and anticipated process, but the amount of hydrogen gas produced was unknown because the operators didn't know the exact temperature of the fuel rods or the water level.
这个过程是被预见的,但是大量的氢气是否会产生无法预测,因为操作员并不知道燃料棒的确切温度,也不知道水位线到底多高。
Like alcohols, fatty acids are molecules that have lots of hydrogen and carbon atoms, and a small amount of oxygen (in their case two oxygen atoms, rather than one).
脂肪酸和醇类很相似,它有着大量的氢原子和碳原子,以及数量很少的氧原子(它还有两个氧原子而非一个)。
So are hydrogen atoms unavoidable space mines? Would a real-life Capt. Kirk eat an infinite amount of radiation every time someone engaged the warp drive?
那么氢原子是不可避免的地雷吗?能不能有一个真正的柯克舰长每时每刻吃掉无限多的辐射能来驱动翘曲引擎?
The researchers used what’s called an ion microscope to compare the amount of normal hydrogen in the moon rocks to the amount of the hydrogen isotope deuterium, which carries an extra neutron.
科学家用到了一种叫离子显微镜的仪器,来比较月球岩石上氢的含量与重氢含量(重氢比普通氢多带有一个中子)。
So, for example, if we look at the 2 s orbital of argon, it's going to have the same amount of nodes and the same type of nodes that the 2 s orbital for hydrogen has.
所以举例来说,如果我们看氩的2s轨道,它有相同数量的节数,和相同类型的节点,对于氢的2s轨道。
The amount of hydrogen contained in each tube depends on tube diameter, length, and pressure rating.
每个管道的氢容量由管道直径、长度和额定压力决定。
Change the experiment device to produce the same amount of hydrogen to control variables.
改变实验装置,通过产生相同量的氢气来重新控制变量。
Effect of the speeding additive on deposition rate, hydrogen evolution amount, content of phosphorus and corrosion resistance of deposit in acidic electrolyte has been studied.
研究了酸性化学镀镍溶液中加速剂对沉积速度、氢的析出量、镀层含磷量和镀层耐腐蚀性能的影响。
The wide flammability range, 4% to 74% in air, and the small amount of energy required for ignition necessitate special handling to prevent the inadvertent mixing of hydrogen with air.
在空气中氢的易燃范围很宽,从4%到74%,而且点燃所需的能量很少,必须特别处理,以防止无意中把氢和空气混合在一起。
The results show that the reactivity and the amount of hydrogen absorption in the HD process are related to the surface activity of the bulk alloy so that fresh active bulk has higher efficiency.
结果表明氢爆碎的吸氢速度和吸氢量与钕铁硼合金铸锭表面的活性有关,表面新鲜、活性大的合金铸锭氢爆碎的时间短、效率高。
Additionally increasing the gas pressure reduces the amount of atomic hydrogen due to higher recombination in the gas phase.
另外,由于气相中高度复合的缘故,提高气压可减少原子态氢的数量。
The amount of trace elements, such as hydrogen, sodium, and potassium, dropped remarkably under vacuum melting.
真空熔炼可使合金中的氢、钾,钠等杂质含量显著地降低。
A large amount of hydrogen chloride in chlorination process was produced with the development and application of chlorine products in chlorination industry.
随着氯产品的不断开发和应用,氯化工业中产生大量的副产物氯化氢,同时带来氯碱工业的氯碱平衡问题。
The effect of the amount of hydrogen-peroxide and catalyst, reaction time and amount of water on the carboxyl content was investigated.
考察了氧化剂用量、催化剂用量、反应时间和水用量对氧化淀粉羧基含量的影响。
The amount of Ruthenium loading, reaction temperature, reaction time and hydrogen pressure have significant impacts on the catalytic performance.
钌的负载量、反应温度、反应时间、氢气压力等条件对催化反应性能具有重要的影响。
It was found that a significant amount of chemical crosslink is formed between filler and rubber chain upon heat treatment, meanwhile the interfacial hydrogen bond is transformed to chemical linkage.
证明在老化时填料和橡胶之间有数量可观的化学键生成,并且发生氢键向化学键的转化。
The sun is made of masses of hot gases, and when the hydrogen in its center is changed into helium, a huge amount of heat is given off.
太阳是由热气团构成的,当其中心处的氢变成氨时,便放出大量热能。
The effect of diverse ligands, amount of the ligands, different reaction time, amount of the catalyzer and dosage of hydrogen peroxide was investigated.
发现配体种类、用量、反应时间、催化剂的用量、双氧水的用量是合成己二酸的主要影响因素。
In fact, the gases dissolved in molten steel are mainly oxygen, hydrogen and nitrogen of a very small amount.
事实上,钢液中的气体主要为氧、氢、氮,且含量极小。
X ray lasers that a Ne plasma is pumped by the intense Na radiation is simulated. By mixing a large amount of hydrogen with Ne, electron temperature is very low and laser gain is increased obviously.
数值研究短脉冲强钠X光泵浦氖激光介质的X光激光,通过在氖中加氢的办法降低了电子温度,有效地提高了激光增益。
Some developed countries consider hydrogen energy and fuel cell technologies the ideal solutions to future road transport energy, and make huge amount of investments in their research and development.
氢能和燃料电池技术被一些发达国家视为未来道路交通能源的理想解决方案,并投入巨资开展研发活动。
The neutron log is primarily resposive to the amount of hydrogen in the formation.
测井是目前在套管井中评价储层含油饱和度的最有效办法。
The use of hydrogen peroxide in such a process allows to reduce the power of extrusion at constant moisture content, and to reduce the amount of added water at constant extrusion pressure.
在这种方法中使用过氧化氢能够降低相同水含量下的挤出功率,并且能够减少相同挤出压力下的加水量。
The experimental results show that the deeper layer's curing speed of the ink system mainly depend on the type and the amount of the sensitizer and the hydrogen donor.
研究了复合引发体系的组成、配制方法、油墨加工方法对固化速度,特别是深层固化速度的影响。
The experimental results show that the deeper layer's curing speed of the ink system mainly depend on the type and the amount of the sensitizer and the hydrogen donor.
研究了复合引发体系的组成、配制方法、油墨加工方法对固化速度,特别是深层固化速度的影响。
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