查询词典 hydrogen

In order to obtain highly efficient H_2-producing aciduric anaerobic strain, a hydrogen producing strain H-8 was irradiated by microwave, the microwave mutagenesis parameters were optimized, and the genetic stability, hydrogen-producing potential and acid resistance of the mutant were investigated.

为获得厌氧产氢菌的高效突变株，以产氢菌H-8为原始菌株进行微波诱变处理，对微波诱变参数进行了优化，考察了突变株的遗传稳定性、产氢特性及耐酸性。

If a water molecule settles down next to an adatom, one of the water's hydrogen atoms can jump to the adatom, making two oxygen-hydrogen pairs complete.

如果一个水分子平息旁边的一个原子，一个水的氢原子可以跳转到的原子，使两个氧氢对完成。

New sulfonyloxadiazolones have the formula, in which A stands for hydrogen, sulphur,-SO-,-SO2- or a group, in which R stands for hydrogen or alkyl; R stands for optionally substituted cycloalkyl, cycloalkenyl or aryl; and R stands for optionally substituted alkyl, alkenyl, dialkylamino or aryl.

本发明涉及式新的磺酰基__二唑酮，其中，A代表氧、硫、－SO－、－SO 2 －或基团，其中R 3 代表氢或烷基；R 1 代表任选被取代的环烷基，任选被取代的环烯基或任选被取代的芳基；和R 2 代表任选被取代的烷基，链烯基，二烷基氨基或芳基。

There is an allotropic change temperature (1155K) for pure Ti and it is a hydrogen-absorbing metal for different solubility in a-phase titanium and 3-phase titanium. The hydrogen atom dissolves in lattice and occupies tetrahedron interstitial position, and then forms TiH2 sublattice of face-centered cubic.

钛是－种具有同素异型转变点T(1155K)的吸氢金属，氢在α钛和β钛中有不同的溶解度，在T以下易形成具有面心立方晶格结构的TiH2，氢原子溶解在晶格中，占据四面体间隙位。

The total radiative loss include the sum of every possible transition between two levels under the atomical models of hydrogen (4 level + 1 continuum), ionized calcium (5 level + 1 continuum), and magnesium (3 level) beside the contributions from nagtive hydrogen of f-f and f-b tranditions.

并将辐射损失速率与非热电子束轰击和软x线作用下的产能率作了比较，结果表明：耀斑不同时刻的色球辐射损失变化可达一个量级以上；耀斑脉冲相前后电子束加热相当有效；耀斑强度极大时，电子束轰击和软x线加热都有作用；耀斑主相时，软x线加热更能有效地平衡辐射损失。

The hydrogen is produced by the reaction of Al and autoecious mechanism during anode effect dealing process, which has important effect on the formation of Al electrolyte. Hydrogen produced in the course of Al electrolysis pollutes aluminum liquid by diffusion and autoecious mechanism is the main rootstock affecting the metallurgical quality of liquid-Al in short-flow process.

水分与铝反应所产生的氢通过Al2O3夹杂物气体寄生机制进入铝液，对电解铝液中氢的形成有重要影响；铝电解过程生成的氢通过扩散和寄生机制对铝液的污染，是短流程工艺影响铝熔体冶金质量的主要根源。

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。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48