查询词典 hydrogen

Preventionof back-flow of air prevents the hydrogen fuel system from backfiring,which is another common problem of hydrogen fuel systems.

防止回流的空气，防止氢燃料系统从回火，这是另一个常见的问题，氢燃料系统。

The concept of hydrogen fuel cells was invented in 1839 by Sir William Grove. BOC's director of sustainable energy, John Carolin, said:"The lessons from this and other projects will show that hydrogen fuel cell-powered vehicles could be a practical, attractive and a viable economic alternative to diesel- or petrol-fuelled vehicles."

BOC公司可再生能源部的主管约翰·卡罗林表示，&通过这辆汽车及其它同类项目所得到的经验将会告诉世人，将氢燃料电池做为汽车的动力来源这一想法是可以变为现实且颇具吸引力的，从经济角度来看，这种车也完全可以替代那些以汽油或柴油做动力的汽车&。

And in Jiangsu can early absorbed domestic and international technology before two years, have development, research to technology of chloric hydrogen sulfide, through countless experiment, mastered skill of chloric hydrogen sulfide eventually, passed the sanction of bureau of national technology property right.

而江苏中能则早在两年前就吸收了国内外的技术，对氯氢化技术进行开发、探究，通过无数次的试验，终于把握了氯氢化技术，并通过了国家技术产权局的批准。

The invention is characterised in that the gaseous fuel containing hydrogen or consisting of hydrogen is fed into the swirl generator (1) largely axially and/or coaxially to the burner axis, forming a fuel flow, with a largely spatially defined flow form (9) which is maintained inside the burner and opens up in the region of the burner outlet.

本发明的特征在于，所述含有氢气或者由氢气所组成的气态燃料在涡流发生器(1)内相对于燃烧器轴线尽可能轴向地和/或同轴地、在形成燃料流的情况下以尽可能空间受限制的流动形状(9)被输入，该流动形状(9)在燃烧器内得以保持，并且在燃烧器出口的范围内绽开。

As hydrogen atoms and catalyst atoms are normally found bound together as molecules or are bound in other compositions of matter, BlackLight has invented a solid fuel that uses conventional chemical reactions to generate the catalyst and atomic hydrogen at high reactant densities that in turn controllably achieves very high power densities.

通过分离出该进程中的能量产物，用外界元素中电解水。使用水作为燃料，不可见光发电机的可用成本是不昂贵的，而且，他不会带来空气污染或者放射性废物，还具有商业使用价值的氢成分作为氢产物。

Compared to the hydrogen storage material 70Mg30C and MgH2, the crystallitic carbon and the catalysts of Ni and Al cut down the dehydrogenation time, increased the dehydrogenation capacity of hydrogen storage material, and reduced its apparent activation energy. And the dehydrogenation kinetics performance was improved.

与储氢材料70Mg30C及纯MgH2相比，微晶碳和催化剂Ni、Al缩短了储氢材料的放氢时间，加快了放氢速度，提高了放氢量，降低了表观活化能，放氢动力学性能得到了改善。

The crystallitic carbon was prepared from anthracite by demineralization and carbonization,then the magnesium/carbon nanocomposites for hydrogen storage were manufactured through reaction milling of the mixture of magnesium,crystallitic carbon and aluminium under hydrogen atmosphere.

将无烟煤进行脱灰和碳化，制备微晶碳，再将微晶碳和铝添加到镁中，用氢气反应球磨法制取镁/碳纳米复合储氢材料。用透射电子显微镜、选区电子衍射、X射线衍射和差示扫描量热分析对储氢材料的粒度、晶体结构和放氢温度进行了测定。

P-Isopropylphenol was synthesized by catalytic transfer dehydrogenation with 5% Pd/C using 4-isopropylcyclohexenone as the material and the hydrogen offer, industrial dipentene as the hydrogen acceptor and the solvent.

采用5%Pd/C作为转移氢催化剂，4-异丙基环己烯酮为氢给予剂，工业双戊烯为氢接受剂和溶剂进行反应，合成了对异丙基苯酚。

The p-Isopropylbenzoic acid was synthesized by catalytic transfer dehydrogenation with 5% Pd/C using dihydrocumic acid as material and hydrogen offer, industrial dipentene as hydrogen acceptor and solvent, reacted directly under reflux condition.

采用5% Pd/C作为转移氢催化剂，原料二氢枯茗酸为氢给予剂，以工业双戊烯作为氢接受剂和溶剂，合成了对异丙基苯甲酸。

The reaction performance of Pt-Sn-Li/Al_2O3/FeCrAl catalyst was measured,and the properties of the catalyst were characterized.It was found that reaction temperature,LHSV and the molar ratio of hydrogen to alkane have greatly affected on the catalytic performance of the Pt-Sn-Li/Al_2O_3/FeCrAl catalyst.Under a set of optimal reaction conditions,at 0.1 MPa,470℃,the molar ratio of hydrogen to alkane of 4 and LHSV of 0.14 mL·m~(-2)·h~(-1),the dodecane conversion is 6%,and the dodecene selectivity is about 72%.

结果表明：工业催化剂的催化性能比至今实验室制备的γ-Al_2O_3和SBA-15颗粒负载型颗粒状催化剂的性能好；反应温度、液时空速和氢烃摩尔比对Pt-Sn-Li/Al_2O_3/FeCrAl金属基整体式催化剂脱氢性能都有重要影响，最适宜的反应条件是压力为0.1 MPa，反应温度为470℃，进料氢烃摩尔比为4和LHSV为0.14 mL·m~(-2)·h~(-1)，此时十二烷的转化率约为6%，十二烯的选择性约为72%；活性组分涂层与金属基体结合良好。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。