查询词典 hydrogen fluoride

According to a report in Battery Bimonthly, there is an annual market demand of 40,000—50,000 tons of hydrogen storage alloy powder in the world, and the annual demand of hydrogen storage alloy for common Ni-MH chemical battery in China is around 8,000 tons, however the annual output is less than 5,000 tons. At present, demands of hydrogen alloys for Ni-MH chemical batteries are increasing by over 30% in each year and there is still a big vacuum in the market.

据《电池快讯》报道：全世界每年约需贮氢合金粉40000—50000吨，我国普通镍氢电池用贮氢合金每年需求量约8000吨，国内实际年产量不足5000吨，镍氢电池用贮氢合金目前国内需求量每年以30%以上的速度递增，市场需求缺口很大。

On the other hand, steam can be used to restrain the side reaction such as hydrogen transfer reaction so as to increase the yield of light olefins by diluting the concentration of the reactant. In addition, minor steam can react with the feed hydrocarbon resulting in the decrease of coke and the formation of active hydrogen without the increase of hydrogen gas and light saturates that is not desirable.

另一方面，水蒸气不仅仅具有降低烃分压的作用，抑制了氢转移反应等副反应，对于低碳烯烃的产率有好的影响，而且在反应过程中，少量参与了反应，与烃类发生了水煤气反应，生成了活泼氢，不仅降低了焦碳的产率，并且没有提高氢气、低碳烷烃等不希望得到的产物。

The main use of heavy hydrogen, excess hydrogen, etc. The thermonuclear fusion of light nuclei reaction principle, said the weapons made fusion weapons, also known as thermonuclear weapons or hydrogen bombs.

主要利用重氢、超重氢等轻原子核的热核聚变反应原理制成的武器称聚变武器，也称热核武器或氢弹。

Process comprising contacting initiator with alkylene oxide in the presence of hydrogen fluoride and a double metal cyanide complex catalyst.

一种方法，其包括说明书摘要在氟化氢和双金属氰化物复合催化剂存在下使引发剂与亚烷基氧化物接触。

It is the base of hydrogen ion sensitive field effect transistor ,used fluoride sensitive membrane as ISFET gate.

它是在pH2ISFET传感器的基础上用PVC 方法把离子敏场效应晶体管和氟化物敏感膜相结合，制成氟离子敏场效应晶体管。

ScF3-MX molten salt was made from scandium oxide and ammonium hydrogen fluoride by solid state fluoridation under heating and melting.

研究制定了ScF_3-MX熔盐Al熔体中Mg热还原制备Al-Mg-Sc中间合金中南大学博士学位论文摘要的新工艺。

Longer reaction time (48 h) and increase of hydrogen fluoride and catalyst are good for fluorination.

反应后的滤渣可再生为氧化汞循环使用，回收3次，反应的转化率和选择率均大于85%。

Synthesis of trifluoromethylbenzene by fluorination of trichloromethylbenzene with hydrogen fluoride was investigated.

三氟甲基苯是一种重要的有机化工中间体，广泛应用于医药农药染料等领域。

How reduce discharge of hydrogen fluoride become an important subject for research effectively.

如何有效降低氟化氢的排放成为了一个重要的研究课题。

The results indicate that relationship between hydrogen fluoride laser and aluminum is different from that between CO2 laser and aluminum.

结果表明，氟化氢激光与铝靶相互作用得到的冲量耦合系数和激光功率密度的关系与CO2激光不同。

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