结合质

In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.

本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据；观察了各种强度质点增强复合材料的铸态和时效态微观组织，分析其微观结构形成的金属学条件及稳定性机理，研究了其时效析出规律和时效机制，发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征，并解释了其形成机理；利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制，揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献；研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为，并对其进行了稀土界面层设计与制备，改善了颗粒与铝合金之间的界面润湿性，降低了复合材料铸造渗透压力，提高了复合材料的强、韧性；研究了多种复合材料界面结构及形成机理，确定了增强体与基体之间的界面结合机制，分析了复合材料界面处的晶体学位向关系；最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料，得到了强度和阻尼综合性能较好的轻质复合材料。

Light wood-framing is the use of closely spaced members of dimension lumber combined with sheathing to form structural elements of a building.

木框架结构 Wood-Frame Construction 轻质木框架是使用间隔紧密的定型木构件结合覆面板以形成建筑的结构组件。

Otherwise, the routine calculation will make certain whether the cell design of dock gate is appropriate in the abstract and the state of rotation can be observed easily.

将两者进行结合，可以计算出卧倒门的质心、浮心、转动惯量的变化，确定舱格设计是否合理，并得出其起卧状态。

On the basis of the molecular-field theory and thermodynamics of magnetic system, the relation between heat and magnetic entropy change of the regenerative room-temperature magnetic Ericsson refrigeration cycle was analyzed in our study.

结合分子场理论和磁系统热力学知识，分析了回热式室温磁Ericsson制冷循环中热量和磁熵的关系，重点研究了热源温度对铁磁质磁Ericsson制冷循环性能的影响。

On the basis of the molecular-field theory and thermodynamics of magnetic systemthe relation between heat and magnetic entropy change of the regenerative room-temperature magnetic Ericsson refrigeration cycle was analyzed in our study.

结合分子场理论和磁系统热力学知识，分析了回热式室温磁Ericsson制冷循环中热量和磁熵的关系，重点研究了热源温度对铁磁质磁Ericsson制冷循环性能的影响。

With the assistance of the chaperons such as calnexin、calreticulin and tapasin,the molecular heavy chain andβ2 micro globulin of the major histocompatibility complexare assembled together to form the steady complex which is further transported to the surface of the APC through the Golgi body.

在calnexin、calreticulin、tapasin等分子伴侣的协助下，内质网腔内的主要相容性复合体(major histocompatibilitycomplex，MHC)Ⅰ类分子重链、β2微球蛋白以及相应多肽片段聚集成较为稳定的复合物，经高尔基体被进一步转运到APC表面；MHCⅠ类分子与抗原肽的有效结合是特异性细胞免疫应答的重要的环节。

Based on Darcys law and material balance principle, mathematical model of three-dimensional three-phase was derived in porous medium with artificial fractures, and the gravity was considered in the model.

根据物质平衡原理和达西定律，考虑基质和人工裂缝作用下三维三相渗流模型，并考虑了重力作用影响，结合应变孔隙度模型、应变渗透率模型，建立了流固耦合整体压裂数学模型。

This regulatory mechanism is conserved among dicots and monocots both in structure and function.

另外， 由质膜Na+/H+逆向转运蛋白SOS1、蛋白激酶SOS2以及Ca2+结合蛋白SOS3组成的SOS复合体对细胞的Na+稳态具有重要的调节作用，单子叶和双子叶植物之间的这种调节机制在结构和功能上具有保守性。

The focused protein zones were eluted to the entrance of MS by combining cathodic mobilization with gravity.

已聚焦好的蛋白质区带通过结合阴极移动和重力移动的方法从毛细管中流出而进入质谱仪。

What is the role of complexin in the assembly process of SNARE complex? And it is still unclear what the mechanism of exocytosis inhibited by high concentrations of complexin.

本文重点研究了complexin与SNARE复合体之间结合的特性以及高浓度的complexin抑制递质释放的分子机理。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。