查询词典 hydrogen

In the early 1950s American scientist s produced the hydrogen bomb by inducing fusion reactions in a mixture of the hydrogen isotopes deuterium and tritium, forming a heavier helium nucleus.

1950年代，美国科学家在氢的同位素氘和氚的混合物中引导聚变反应生成较重的氦原子核，从而制造出了氢弹。

It is suggested that the application investigation of hydrogen energy and hydrogen storage materials should be spurred and encouraged; keeping track of the development on tritium technology for fusion reactor is stressed.

建议重点开展氢能应用与贮氢材料的研究，重视聚变堆氚工艺技术的跟踪。

Guards against the facture and the correlation stipulation based on the air pollution defines, the air pollutant may divide into four big projects, respectively be the gaseity pollutant (including sulfur oxide compound bucket carbon monoxide, nitrogen oxide compound, hydrocarbon, chlorine, gasified hydrogen, fluoride, chlorhydrocarbon and so on), the granular pollutant (including suspended particulate matter, golden bureau coal smoke, black smoke, acid fog, falls dust and so on), two pollutant (refers to pollutant to pass through photochemical reaction in air to have pollution again, including photochemistry fog, photochemistry high oxide compound and so on) and odor matter (including chlorine, hydrogen sulfide, curing methyl, sulfur alcohol type, methyl amines) and so on.

依据空气污染防制法及相关规定所定义，空气污染物可分为四大项目，分别为气状污染物（包括硫氧化物勺一氧化碳、氮氧化物、碳氢化合物、氯气、气化氢、氟化物、氯化烃等）、粒状污染物(包括悬浮微粒、金局煤烟、黑烟、酸雾、落尘等)、二次污染物（指污染物在空气中再经光化学反应而产生之污染，包括光化学雾、光化学性高氧化物等）及恶臭物质(包括氯气、硫化氢、硫化甲基、硫醇类、甲基胺类)等。

From the view of hydrogen selectivity, ZnCl2 ranks first, K2CO3 second and Raney-Ni third. However, Raney-Ni is most favorable to gasify biomass, its gasification efficiency reaches 126.84%, and it can earn 34.37g hydrogen by gasifying 1kg biomass.

结果表明，ZnCl2对氢气的选择性最高，K2CO3次之，Raney-Ni最低，但在低温条件下Raney-Ni最有利于生物质的气化，气化率高达126.84%，氢气产率高达34.37gkg^(-1)。

The net gas produced from the coking process can be made fuel and also make the material of producing hydrogen equipment. Gasolene can be make the reforming material by the process of adding hydrogen, and produce the high-octane gasoline, and also can be sale as the material of ethane; The coking diesel oil can produce the high-cetane number one by hydrofming; The coking waxen oil can be added the material of the coking equipment to increase the productivity of the gasoline and diesel oil.

它生产出来的干气可以作为燃料也可以作制氢装置的原料；汽油通过加氢处理可以作为重整原料，生产高辛烷值汽油，也可以作为乙烯原料出售；焦化柴油通过加氢精制生产高十六烷值柴油；焦化蜡油可以作为催化装置掺炼原料，在催化装置内进一步加工，增加企业汽油和柴油产量。

A glassiness wall barrier layer for resisting infiltration of hydrogen or hydrogen isotopic element and process for preparation which is used in stainless steel belongs to the protecting technology for metal surface.

一种不锈钢用阻氢或氢同位素渗透玻璃质壁垒层及制备方法，属金属表面防护技术。

The compound catalyst is added with a cocatalyst ingredient, hydrogen tungsten gunmetal or hydrogen molybdenum gunmetal on the basis of a normal carbon platinum-carried compound catalyst.

该催化剂在一般碳载铂催化剂的基础上添加了助催化成分氢钨青铜或氢钼青铜。

Particularly in theβsubunit, the rotation of the distal HisE7 (63) imidazole ring about the Cα-Cγ bond and its large distance from the haem plane make a hydrogen bond possible between E7 Nε and the terminal binding oxygen atom, while in human oxyHb this hydrogen bond either does not exist or is only very weak.

这个氢键在人oxyHb分子中要么不存在要么很弱。

Not only the hydrogen atom of hydroxyl but also the hydrogen atom of the methyl group can transfer to the N atom of heterocycle.

不但甲醇分子羟基上的H可以作为供体质子，而且甲基上的H也可以作为供体质子而转移到芳香环的杂原子N上。

The effect of heterocycle in the molecules was similar to that of group -NH2, but the hydrogen on the nitrogen atoms could form the hydrogen bond between molecules which could effectively improve the thermal stability.

对于二维电荷转移体系，我们研究了氧桥Λ型分子，它含有两个D-π-A轴，属于典型的二维电荷转移体系，且它们的β_／β_＜1。

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