查询词典 structure stability

The piston mathematical model of some type engines in topology optimization was founded using variable density method. According to the optimization area of the piston pin seat and the thrust face, the topology optimization of piston structure in this area was studied using the HyperWorks software premising the stability of skirt's distortion.

建立了某高速发动机活塞的变密度法拓扑优化数学模型，以活塞销座和推力面之间的区域为优化区域，在保证裙部变形稳定性的前提下，利用HyperWorks软件对该区域的活塞结构进行了拓扑优化。

Although family hegemony on region lied in a great measure on the amount of their possession quotient of regional social resources, inasmuch, the process of family promotion went always with the plunder of political、 economic and cultural and educational resources. However, when limited resources had been partitioned, and a stable force structure had formed, the big families would construct their existing place from culture and education、 economy、patronizing the younger generations 、striving more resources from outside and so on, to improve the relationship of family and region, furthermore, to provide harmonious condition for their development. What they had done composed "the redounding phenomenon", and this kind of redounding behavior had surely exerted notable effect for regional stability and development. It may be the real cause that how ancient Chinese family could control region social.

虽然能否在地方事务上享有支配权往往取决于家族所掌握的地域社会资源的份额，并也正因为如此，家族上行流动的过程总是伴随着对地域政治、经济、文教等方面资源的掠夺，但是，当有限的地域社会资源被崛起之族瓜分殆尽，并形成相对稳定的势力格局之后，为改善家族与地方的关系，为本家族营造宽松和谐的发展条件，家族一般又会转而从文教、经济和入仕队伍等方面建设地方，为所在地域整体争取更多外在资源，形成&回馈&的表象，且这种&回馈&亦的确在稳定地方、发展地方方面作用显著，而这也许正是中国古代家族组织能长期控制地域社会的根源所在。

Comparing the landscape types of 1995 with that of 2005, we find out that:①the natural arbors are decreasing, with patches more fragmentation, size more odds, shapes more complex;②the area of natural shrubberies is increasing, with patches less fragmentation, shapes more simple and formulary ,the size of patches more even;③the area of natural grasses is increasing, with patches less fragmentation, shapes of patches more odds;④the area of timbers is increasing, with patches more dominance in landscape, more connectivity;⑤the area of Eucalyptus increases, with patches less fragmentation, shapes of patches more complex , more convergence, more connectivity;⑥the area of orchards is increasing, more connectivity;⑦the patches of the rubber is becoming more assemble, more connectivity, more formulary;⑧the area of plowland increases;⑨the area of reservoirs, rivers and ponds increases, with patches more assemble;⑩the area of cities decreases, with patches more dispersing, with shape more complexthe area of countries increases, with patches less connectivity, more dispersing, with shape more complex; the patches of the rest lands are more dispersing, with shape more complex;(3)In the process of economic development in the upper reaches of the Changhuajiang river watershed, a series of the ecological environment problems have appeared because a lot of landscape function broke off, and the connection of human landscape with natural landscape decreased, which aroused by the fragmentation of natural and semi-nature landscapes increased, the stability of the landscape structure decreased, as well as stress of human disturbance, resource and environment upon the landscape increased gradually.

3昌化江上游流域在经济发展进程中，自然与半自然景观破碎度增加，自然景观结构稳定性下降，人为干扰、资源和环境对景观胁迫逐渐增大，中断了许多生态过程，导致城市等人文景观与自然景观连接度很差，产生了一系列的生态环境问题。

Shortly before the voyage was over, he mulled over what he had seen on the Galápagos:"When I see these islands in sight of each other, and possessed of but a scanty stock of animals, tenanted by these birds, but slightly differing in structure and filling the same place in Nature, I must suspect they are only varieties … If there is the slightest foundation for these remarks the zoology of the will be well worth examining; for such facts would undermine the stability of Species."

在这次航行结束前不久，他仔细思考了在加拉帕戈斯群岛上看到景象：&那些岛屿相互毗邻，彼此可以看见，仅仅拥有少量的动物，栖息着一些结构略微不同并且在自然界中存在于相同的地方的鸟类，当我看到这些岛屿时，不由得猜想这些鸟类仅仅是一些变种……。即使这些观察有最少的基础，加拉帕戈斯群岛的生物学也将是完全值得考察的，因为这些事实将摧毁物种稳定的观念。&

By putting forward his Trading Zone theory, Peter Galison argues that the disunity of scientific structure, which is demonstrated by it's subcultures and the local coordination among them occuring within the area of the trading zone, undergirds the strength and stability of science.

关于科学的基本性质和内部结构问题，盖里森在分析和批判逻辑实证主义和反实证主义传统观点的基础上，通过借鉴人类学的研究方法，提出了一种互嵌式的科学结构模式和存在于科学亚文化层面上的&交易区&理论，进而阐述了科学的分立性。

In addition, the calculating elements and the calculating model of vertical column, horizontal beam and retaining plate of frame are proposed in this paper, the solving method of anchor supporting reaction is given out, at the same time, the expressions of analysis of structural stability and embedment depth design of foundation are deduced, and the program of the design and calculation of frame supporting structure with pre-stressed anchor bar is written with the language MATLAB too.

另外，本文提出了框架的立柱、横粱和挡土板的计算单元和计算模型的确定方法，给出了锚杆的支点反力的计算方法。

Spherical composite inorganic ion-exchanger s,hydrated titanium dioxide-hydrated antimony pentoxide,were prepared using sol-gel method and their ion exchange properties for Sr 2+and Cs + as well as their composition,structure and stability were investigated in this paper.

用溶胶 凝胶的方法制备了水合二氧化钛水合五氧化二锑球形复合无机离子交换剂，研究了其对Sr2 +和Cs+的离子交换性能，并对其组成、结构及稳定性作了初步的研究。

As a compress-bend structure, with increasing of the span, length slender ratio and carrying load of arch increase, lateral rigidity and width span ratio of arch ring minish relatively. During construction and service stages, lateral stability becomes more important and a control factor of arch bridge design.

拱肋作为压弯结构，随着跨径的增大，杆件的长细比及所承受的荷载也随之增大，拱圈横向刚度、宽跨比相对减小，在施工阶段及使用阶段横向稳定问题特别突出，常常成为拱桥设计的控制因素。

As a structure that is compressed and bended, with increasing of the span, length slender ratio and carrying load of arch increase, lateral rigidity and width span ratio of arch ring minish relatively. During constructing and bring to bear, lateral stability becomes especially severity and a control factor of arch bridge design.

拱作为压弯结构，随着跨径的增大，杆件的长细比及所承受的荷载也随之增大，拱圈横向刚度、宽跨比相对减小，在施工阶段及使用阶段横向稳定问题特别突出，常常成为拱桥设计的控制因素。

On the base of various methods evaluating high-temperature stability of asphalt mixture and the fact that framework structure asphalt macadam mixture strength mainly from internal frictional resistance, dynamic load press-in test with confined pressure is adopted in the paper.

在综述沥青混合料高温稳定性各种评价方法的基础上，对强度主要来源于内摩阻力的嵌挤骨架类沥青碎石混合料，本文采用具有侧限、能反映材料3向受力状态的动载压入法进行研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。