微观研究

Effect of starting powder size on microstructure and mechanical properties of Ti-based cermets were studied.

研究了原始粉末粒径对Ti基金属陶瓷微观结构和力学性能的影响。

In this paper, we study the quantum tunneling effect of a cold atomic beam propagating through a laser beam which is blue detuned.

这种量子隧穿效应在微观粒子中得到了广泛的理论[1—17]和实验研究[18—24]，并在一些实际的电子器件中得到了应用[25，26]。

On the basis of the metioned above, in the mass, the thesis amalyzes the ecological problems that Wuzhong has and the reasons that result then in , ecological construction acheivments and it"s consumable affecs ;then in detail and using the way combined fix quatity with quality , analyzes the condition, degree, mechanism, processof ecological caustic of various regions and kinds of ecological systems in Wuzzhong, juging the feasibility of restore and reconstruction of them. The paper indicates, as a whole ,the degree of eological caustic of the region is relative severity, but the diffefences between the plain region and the mountains region are very obvious, and all of them can be retored and rconstructed, wich has been proved by theory and practices. According to the conclutions and combining them with the mature theory ecological fumction dividings and the condition of Wuzhong"s mature and society , the study divides the region into seven ecological functional areas. On basis of the ecological construction strategic targets presented by the governments of the country and Ningxia,Wuzhong and the caustic condions of different ecological system in defferent areas, the author design the models of ecological restoration and reconstruction for the different ecological areas and how to use them.

在此基础上，从宏观上分析了吴忠目前存在的主要生态问题和形成原因、生态建设成就与成果自耗因素，接着着重从微观上对吴忠各地的生态致损情况、各类生态系统的受损度、受损机理和过程、生态恢复与重建的可行性进行定量和定性分析判断，指出从整体上看该区域生态受损比较严重，但存在着明显的山川二元结构，其恢复与重建在理论和实践上均证明是可行的，并据此结合已成熟的区域生态功能区区划理论，以吴忠的自然、社会条件和其它有关区划结果等为依据，对吴忠整体进行了生态功能区区划，然后根据国家、宁夏与吴忠三级政府出台的各级别生态建设战略目标、任务，按照有关生态恢复学等有关理论，详细地对七大生态功能区中各受损生态系统的恢复与重建模式进行研究，提出了不同的生物与工程模式及实施办法、途径、措施。

Influence of TiO2, Co3O4, Cr2O3, Ni2O3 and MnO dopings on the microstructure and electrical properties of SnO2-Sb2O3 based varistor ceramic materials was investigated.

实验研究了TiO2、Co3O4、Cr2O3、Ni2O3和MnO掺杂对SnO2-Sb2O3基压敏陶瓷材料微观结构和电性能的影响。

There is significant difference between CRP anti common factors of cold and heat syndromes in earls RA patients.

因子分析能够对症状进行分类研究，因子分析结果与传统证候分型有一致性；代表寒热证候的公因子CRP在早期RA患者之间有显著性差异，寒证的CRP低于热证，提示CRP可以作为RA寒热主观症状分类的微观指标之一；联合运用因子分析和典型相关分析方法分析主观症状与客观指标之间的相关性是可行的。

The first chapter is about some concepts and theories on L/C and exposures.

本文正是在此基础上才体现其研究的真正价值；第四章和第五章是本文的重点，从微观的角度分析了电子商务环境下的信用证收汇风险种类和产生这些风险的原因。

Investigations are carried on the microstructure, mechanical properties and shielding effectiveness against thermal neutrons, 60Co and 137Cs rays of Fe78Si9B13 amorphous thin ribbons. Significant differences of micro- structure exist between the free face and wheel face.

对Fe78Si19B13非晶薄带的微观结构、力学性能进行了初步研究，并测试了非晶薄带叠层板材对高能射线（热中子及60Co、173Cs 2种γ源射线）的屏蔽效果。

Transmisson electron microscopy has been used to investigate the microstructures and analyze the defects in synthetic diamond prepared under high temperature-high pressure in the presence of FeNi alloy catalyst.

本文首次采用透射电子显微术系统地研究了由FeNi触媒制备的金刚石单晶的微观结构，分析了人造金刚石中存在的晶体缺陷，探讨了这些晶体缺陷形成的原因。

The influence of Ta2O5 addition on the microstructure and magnetic properties of MnZn ferrites was investigated.

采用氧化物陶瓷工艺制备MnZn功率铁氧体，研究了不同Ta2O5含量对MnZn功率铁氧体微观结构和磁性能的影响。

The effects of adding SnO2 or Nb2O5 on the high-permeability MnZn ferrites were studied on the basis of microstructure analysis.

从分析材料微观结构入手，研究了SnO2和Nb2O5掺杂对高磁导率MnZn铁氧体材料性能的影响。

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。