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Nano-Metre Size TiO2/Al2O3 complex Support was prepared by improved Sol -Gel method.The structure composition and distribution state of complex suppor t were invesigated by XRD.XPS and IR.At the same time,the effect of mechanical g rinding method and other factor effecting on composition change in preparation w ere researched.

采用溶胶-凝胶法成功制备出纳米尺寸的TiO2/Al2O3复合体，并用XR D、XPS和IR等手段研究了复合体的结构组成及TiO2和Al2O3的分布状态，进一步探讨了机械研磨法制备TiO2/Al2O3复合体等因素对其组成的影响。

The iron isotopic composition lightly from hydrothermal fluid upwelled into ocean, BIFs are enriched in heavy isotopes of Fe by partial oxidation and precipitation, and iron isotopic composition was homogenous and reequilibrium during different minerals by metamorphism.

提出了地球早期海洋中Fe的循环模式：洋中脊喷发富集Fe轻同位素的二价铁热液流体，流体进入海洋后经过部分氧化和沉淀的过程使得BIF富集Fe的重同位素，后期的变质作用使得不同矿物间发生了Fe的均一化及再平衡

However remarkable impacts were observed in the plantation in terms of community physiognomy,community structure,species composition,species richness,and biomass accumulation.1 Planting trees made community structure simple.Betula alnoidis plantation had three layers including a dominant arbor layer,a complex and well developed shrub layer and a poorly developed vine layer.The arbor layer contained few species and had a single layer.The mountain rain forest had 4 layers including the dominant arbor layer,shrub layer,grass layer and vine layer.The vine layer was well developed and very rich in species composition,and the arbor layer contained as many as 38 species that could be grouped into 3 layers.2 Sequenced by the important value,main species for the plantation and the nature forest were totally different,and the plantation had one dominant species while the nature forest contained many dominant species.3 Planting trees changed the community physiognomy.

但是人工种植西南桦林对群落的季相外貌、群落的结构、物种组成、物种丰富度以及生物量等方面有较大的影响。1人工造林使得群落结构简化，西南桦人工林的层次结构有3层，以乔木层占优势，并且有种类多而发达的灌木层，同时，藤本植物欠发达，但是乔木层树种单一，明显仅有一层；山地雨林的层次结构有4层，以乔木层占优势，还有灌木层、草本层和藤本植物，藤本植物种类多，十分发达；乔木层树种丰富，可达38种，乔木层还可分为3层。2人工造林较大程度地改变了群落的物种组成，根据重要值的大小排列，人工林和天然林的主要物种组成已经完全不同；并且人工林单优树种明显，而天然林就含有较多的优势树种。3人工造林改变了群落的外貌。

The effects of the composition of plating assistant agent. Temperature of hot-dip medium, time of working and contents of silicon on hot-dip Zn-Al alloy coating were investigated. Optimum galvanizing medium composition and technological conditions were also discussed.

研究了钢基热浸镀锌铝合金镀过程中，助镀剂的组成、镀液温度、浸镀时间、钢基硅含量等因素对镀层厚度的影响，获得了一种耐腐蚀性好、结合力强和光滑的热镀锌铝合金层。

B〓C coating possessed 4% of porosity, 12. 8Gpa of bonding strength, 28Gpa of microhardness, and its modulus is up to 230Gpa. It would provide a kind of coating material with excellent properties for many industrial fields.(2) The phase composition of B〓C coating was studied by XPS, XRD and EDS. It was found that: the oxidation activity energy of B〓C powder and coating is different, which is due to the difference of phase composition between them.

用XPS、XRD和EDX研究了碳化硼涂层的相组成，发现碳化硼粉末在涂层形成过程中不可避免的存在分解；比较了碳化硼涂层和粉末在高温下的氧化行为，发现涂层的氧化活化能比粉末要低，这是由于涂层和粉末相组成不同所造成的。

From the above instructions can see, chemical composition of barite powder and the chemical composition of Precipitation Barium sulphate is same, low content,But barite powder production process is simple,low cost.

从以上说明可以看出，重晶石粉和沉淀硫酸钡的化学成分是相同的，含量稍低，但是重晶石粉生产工艺简单，成本低。

In order to explore the influence of the bath composition on Ni-W-P alloy coating structure and properties, to find the right ratio, so as to lay the foundation for follow-up experiments, SEM/EDS, X-ray diffraction, and metallographic analysis and other methods were adopted to study the composition and structure of different chemical deposition of Ni-W-P alloy. And the hardness of different components of the sediment layers plated state and the hardness after heat treatment were measured.

为了探索镀液组分对Ni-W-P合金镀层结构与性能的影响规律，寻求合适的镀液配比，为后续实验莫定基础，采用扫描电镜／包谱、X射线衍射以及金相分析等方法，研究了不同成分和结构的化学沉积Ni-W-P合金层，测量了不同成分沉积层的镀态与热处理后的硬度。

The result showed that the composition of nutritive media adding beef extraction juice as the main composition with inorganic compounds, Vitamin B and the extraction juice of medicine plant was good method for its high efficient, low consumption and time saving, because it can produced 5 billion PSB in 3~4 day.

结果表明，以牛肉水提取液为主要成份，并辅以无机盐、维生素B族及药效植物提取液的培养基，在3~4天就能培养出活菌数大於50亿／毫升的活性光合细菌制剂，由此证明这种培养基是一种高效、低耗、省时的活性光合细菌制剂的培养方法。

Refers to the mineral composition of emerald crystal surface and cleavage plane of When the composition of the mineral particles thick jade, particularly evident.

是指组成翡翠的矿物晶面及解理面在翠面的片状闪光。当组成翡翠的矿物颗粒粗大时，特别明显。

The synthetic gas and ash composition heat transfer and flow in vertical pipe of coal gasifier are simulated and analyzed by the theory and program presented. The temperature、velocity and concentration variations of synthetic gas and ash composition are accomplished. The influences of coal gasifier working condition and vertical pipe parameters on the gas and ash cooling process are discussed. The law of solid-gas two phase turbulent flow and heat transfer is further revealed.

本文还应用上述理论和程序，在国内首次对气化炉激冷室下降管内合成气和灰份的流动和传热过程进行了数值计算和分析，得到下降管内合成气和灰份的温度、速度和浓度等参数的变化，还讨论了气化炉运行参数和下降管结构参数如气化温度、下降管尺寸、灰份性质等参数变化对合成气降温过程的影响，进一步揭示了下降管内气固两相的流动和传热规律。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。