磷化

This article mainly reviewed the discovery and the research course of natural phosphine ,namely,how phosphine coming into being,and whether phosphine being universal existed gas in natural environment such as in aerosphere,biosphere,hydrosphere.

磷化氢是剧毒的、十分活泼的无色气体，具有强的还原性，在光照、空气等作用下，极易转化为磷的其它形态。

A series of supported tungsten phosphide catalysts were prepared by the method of temperature-programmed reduction of phospho-tungstate in hydrogen.

本文采用氢气程序升温还原磷钨酸盐的方法，制备了一系列负载型磷化钨催化剂。

The annealing ambient can be pure phosphorus or iron phosphide.

退火是在密封的石英管内纯磷或磷化铁两种气氛下进行的。

A series of unsupported molybdenum phosphide were prepared at different reduction temperatures by temperature-programmed reaction process.

通过程序升温还原磷钼酸盐前体的方法制备了无负载磷化钼催化剂，并采用XRD ，BET ，XPS和高压连续微反技术，考察了催化剂的性质，研究了还原温度对催化剂HDN ，HDS和HYD性能的影响。

So, eutrophication lake water may be one source of phosphine taking part in phosphorus circulation.

结果表明：富营养湖泊水体是磷化氢参与磷的生物地球化学循环的一个汇。

The second is the sky of the sky of the Group intends to issue additional orientation as a price to pay for the acquisition of Group holds or is entitled to dispose of the phosphating Group 100% stake in the joint 50 percent stake in Business, Tin Yiu Chemicals 18.13% stake in Yuntianhua Group tranquility assets, water-rich assets, Yuntianhua Group subsidiary office building and ancillary facilities and assets of Research.

二是对集团的天空计划问题作为代价的集团收购更多的方向持有或有权处置磷化集团100％的合资企业百分之五十，天耀股份的股权化工18.13％的股权资产，云天化集团安宁，水资源丰富的资产，云天化集团的子公司办公大楼及附属设施，研究资产。

The research was focused on application of well-developed metal damascene to copper microfabrication on GaAs and InP substrates and also verification of feasibility.

本研究将使用在矽制程上已相当成熟的金属镶嵌技术运用於砷化镓及磷化铟基材之铜金属化制程中，验证其可行性。

Study on the preparation of γ-alumina-supported molybdenum phosphide hydrofining catalysts;2. Silica-supported molybdenum phosphide s were prepared in a fixed bed reactor by an in situ reduction method from their oxidic precursors.

以SiO2为载体，用钼酸铵和磷酸氢二铵作钼源和磷源，采用共浸渍法制备了负载型磷化钼氧化态前体；在固定床反应器上，用H2原位还原制备了MoP/SiO2催化剂。

However, this usefulness of GaN for optoelectronic devices seens to be limited by the fact that the defficulty in obtaining p-type material is to grow crystals by admixing GaP to GaN. As will known, GaP with n- or p-type conductivity can be easily obtained by suitable doping. Thus, it might be possible to get n- and p-type GaP_(1-x)N_x or GaAa_(1-xN_x crystals above some critical P content of the alloy system.

把两种或两种以上材料组合起来实现优异性能材料的方法是一种经常使用并行之有效的方法，本论文就是对GaP、GaAs与GaN形成合金系GaP_(1-x)N_x和GaAs_(1-x)N_x进行基础性研究的结果，人们预测这种合金系的禁带宽度应在磷化镓的2.261eV(或砷化镓的1.43eV)到氮化镓的3.39eV之间，如果能制成上述合金系则是很有意义的，它是很有希望的蓝色发光材料。

Ming Yuan series of new materials surfaces have: passivation agent, phosphating agent, degreasing powder, skim agents, cutting fluids, speckle reducing agents, anti-rust oil, rust-proof solution, saponification fluid, paint remover, table transfers, and parabolic agents, cleaning agents and related metal products, paint stripping also undertake processing business.

铭远系列表面新材料有：钝化剂、磷化剂、除油粉、脱脂剂、切削液、去斑剂、防锈油、防锈液、皂化液、脱漆剂、表调剂、化抛剂、金属清洗剂及相关配套产品，同时还承接脱漆加工业务。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。