氢

The results show that methyl group strengthens the electrostatic attractions, but reduces the H-bonds effect, while benzyl group can make both electrostatic and H-bond effects strong. The theoretical results are identical with the results of the collectors flotation tests. Collecting ability of the quaternary amine salts is better than that of dodecylamine and dodecyl bimethyl amine. The quaternary amine salt containing benzyl group performs best, and it is little affected by pH value. Substitution of N-containing polar group in amine collectors can impact the aluminosulicate minerals flotation.

研究结果表明：甲基的取代可增强阳离子的静电作用能力，同时，削弱它与矿物表面之间的氢键作用；苄基的取代不仅增强药剂的静电效应，而且增加氢键的结合能力；理论分析结果与浮选试验结果一致，季铵盐的浮选能力较伯胺与叔胺的强，连有苄基的季铵盐对铝硅酸盐矿物的捕收能力最强，且受pH值影响小。

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。

By using simplified diffusion equation,the element diffusion model was built for 12-slab stack cooling process.

根据氢和碳的元素扩散规律，可知板坯堆冷工艺可以促使氢的扩散，但对中心碳偏析影响不大。

The annual production capacity of trichlorosilane is 60 thousand tons and the annual production capacity of silicon tetrachloride is 12 thousand tons.

公司年产6万吨三氯氢硅，1.2万吨四氯化硅的规模，三孚硅业为国内最大的三氯氢硅生产基地。

It is a private joint-stock enterprise of pruducing trichlorosilane, silicon tetrachloride, potassium hydroxide.

唐山三孚硅业有限公司成立于2006，是一家以生产三氯氢硅，四氯化硅，氢氧化钾为主的民营股份制企业。

The effects of atmosphere,MH electrode,production process of hydrogen storage alloys separator materials and decomposition pressure of hydride on the self discharge characteristics of Ni MH battery were studied.

探讨了电池中的气氛、MH电极、隔膜材料、贮氢合金生产工艺和氢化物分解压对MH－Ni电池自放电的影响。

Ni MH battery ; self discharge ; separator material ; production process of hydrogen storage alloy ; hydride decomposition pressure

MH-Ni电池；自放电；隔膜；贮氢合金生产工艺；氢化物分解压

In this work,α-Al〓O〓, form the high temperature calcined product of Al 〓 by Debye method, was used as raw material to fabricate alumina ceramics. The seed crystal was added by ball milling of pure α-Al〓O〓 and the alumina ceramics with elongated grains has been experimentally fabricated.

本研究通过拜耳法制备的工业氢氧化铝粉经高温煅烧过程分解转相得到高温稳定的α-氧化铝粉作为制备氧化铝陶瓷的原料，利用球磨过程的磨耗向氢氧化铝粉中引入高纯氧化铝作为晶种，制备出了具有长柱状晶的氧化铝陶瓷。

The flame-retardant/smoke-suppressant of PVC may be divided into three kinds. The first is FRs , includes the compounds lying in IVB～VIB, such as TiO〓, V〓O〓, Cr〓O〓 and MoO〓; The second is FRs , includes the compounds lying in VⅡB～IB, such as MnO〓, Fe〓O〓, Co〓O〓, CuO and ZnO. The third is FRs , includes the compounds of subgroup A, for example Mg 〓, Al 〓, Sb〓O〓, carbonate and phosphate.

PVC的阻燃抑烟剂可分为三大类，第一类阻燃抑烟剂为元素周期表中IVB～VIB族的化合物，以TiO〓，V〓O〓，Cr〓O〓和MoO〓为代表，第二类阻燃抑烟剂为元素周期表中VⅡB～ⅡB族的化合物，以MnO〓，Fe〓O〓，Co〓O〓，CuO和ZnO为代表，第三类阻燃抑烟剂为三氧化二锑，氢氧化镁，氢氧化铝等主族元素的化合物。

An impregnating solution for hydrogenating or hydrocracking catalyst contains the oxide of metal in group VIB (0.08-0.35g/ml), the oxide of metal in group VII (0.01-0.5g/ml) and citric acid (0.05-0.3g/ml).

本发明涉及一种加氢催化剂，特别是加氢处理催化剂所用浸渍溶液及其制备方法。此溶液中含ⅥB族金属氧化物为0.08～0.35g/ml，Ⅷ族金属氧化物为0.01～0.10g/ml，柠檬酸为0.05～0.30g/ml。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。