查询词典 atom structure

Wagon body is a complicated weld structure. While physical wagon can not used to do fatigue test, how to make anti-fatigue design has been discussed in this paper. One coal hopper wagon has been taken as an example to study about anti-fatigue design of the wagon. First of all, based on finite element technique and the theory about how to predict fatigue life of weld structure, the technology route and key technique are given as well, which is based on AAR standard about weld structure wagon fatigue life predicted.

论文认为货车车体是复杂的焊接结构，为了使货车车体焊接结构抗疲劳设计在产品的图纸上就能卓有成效地展开，论文以新型煤炭漏斗车为研究对象，对煤炭漏斗车车体抗疲劳设计开展了一系列研究：首先，基于有限元算法和焊接结构寿命预测的疲劳理论，给出了基于北美铁路协会AAR标准的货车车体焊接结构寿命预测的技术路线及关键技术。

Hence, the present paper turns to the investigation of the theory of systematic social structure from the systematic worldview on living. It shows that, although the theory of systematic social structure synthesizes the theoretical achievements of the above mentioned two social structures and establishes complete social structure theories, it cannot explain the conflicts between dignity systems of moral quality, culture, society and behavioral organism, as well as the conflicts between different countries and social systems.

作为逻辑的必然结果，论文对西方社会学社会结构理论的考察集中到了&交往社会结构观&上，&交往社会结构观&是从西方哲学的交往生活世界观看社会结构的，它虽然以沟通理性代替了常人方法的局部场景的权宜性，解决了人道主义和社会结构的相对确定性问题，但是，&交往社会结构观&又面临着无法解决&上手状态&的&交往生活世界&的独断论问题，无法解决&共识真理&向社会结构的现实性转换问题，无法解决&集体无意识问题&和&少数人真理问题&。

In the SC beam and CCSHRC column structure system the structural dead-weight is depressed, the clean use area increases and less materials are used, this system also posses the advantages of the normal concrete structure and steel structure.

它降低了结构的自重，节约材料，净使用面积和净高得到了增加，同时具有一般混凝土结构和钢结构的优点。

In the SC beam and CCSHRC column structure system the structural dead-weight is depressed, the clean use area increases and less materials are used, this system also posses the advantages of the normal concrete structure and steel structure.

连续复合螺旋箍约束混凝土柱、钢与混凝土组合梁所组成的结构体系比钢梁与混凝土柱体系更具优越性。它降低了结构的自重，节约材料，净使用面积和净高得到了增加，同时具有一般混凝土结构和钢结构的优点。

The carriage of goods in accordance with different types of goods can be an ordinary car field plate structure, platform-type structure, the structure dump, closed car, gas, tank and transport bulk goods (grains, powder, etc.) used in pneumatic blow tank or disposal capacity is dedicated for roads, railways, waterways, air transport and international transport of a variety of standard containers.

按照运载货物的不同种类，货车车箱可以是普通栏板式结构、平台式结构、倾卸式结构、闭式车箱、气、液罐以及运输散粒货物所采用的气力吹卸专用容罐或者是适于公路、铁路、水路、航空联运和国际联运的各种标准规格的集装箱。

ABSTRACT The paper mainly studies the variable structure adaptive control theory for uncertain systems, and applicated the theory into the designs of bank-to-turn missile autopilots. The main contributions of the paper are as follows:(1) Under the condition that all the matched or mismatched parameter, input and disturbance uncertainties exist, a complete set of variable structure control system design and analysis method is proposed and investigated, which brecks throush the serious confines of variable structure invariance conditions theoretically and widen the application area of the VSC theory greatly.

本文着重研究了不确定性系统的变结构自适应控制理论，解决了目前变结构控制理论和自适应控制理论中存在且亟待解决的四个方面的问题，将获得的理论研究成果直接应用于倾斜转弯导弹的自动驾驶仪设计中，取得了很好的结果。

The calculated results show that azido in azides has linear structure , the most optimized CaN6 has linear structure , and the most optimized (CaN6)n (n=2～5) clusters have chain structure of perpendicularity of approximate diamond composed by two azido with two Ca atoms . The middle N atoms of azido show positive, the N atoms at both ends of azido show negative, and the N atoms effected with Ca atoms directly show more negative . There is strong ionic bond between the Ca and N atoms. The IR spectra of the most optimized (CaN6)n (n=1～5) clusters have four vibrational sections , the whole strongest vibrational peak lies in 2195～2280cm-1,and the vibrational mode is anti-symmetric stretching vibration of N-N bonds in azido . Stability analysis show that (CaN6)3 and (CaN6)5 clusters are more stable than other clusters .

结果表明，叠氮化合物中叠氮基以直线型存在，CaN6团簇的最稳定结构为线型结构，(CaN6)n(n=2～5)团簇首先由两个叠氮基与两个Ca原子构成一个近似菱形，再由菱形相互垂直形成链状最稳定结构；叠氮基中间的N原子显示正电性，两端的N原子显示负电性，且与Ca直接作用的N原子负电性更强，金属Ca原子和N原子之间形成很强的离子键；(CaN6)n(n=1～5)团簇最稳定结构的IR光谱分为4个部分，其最强振动峰均位于2195～2280cm-1，振动模式为叠氮基中N-N键的反对称伸缩振动；稳定性分析显示，(CaN6)3和(CaN6)5团簇相对于其他团簇较为稳定。

After analyzing the intrinsic characters and the connection with urban development from the structure of planning and over arrangement structure,the author pays more comprehension to the structure of urban green system and cognizes the order and the connected factors which influence the planning.

从规划结构和布局结构两方面充分分析城市绿地系统结构的内在本质特征和与城市的相互关系。在此基础上进一步理解其含义，把握绿地系统结构的内在规律和外在影响因素。

On the bases of urban growth mechanism and theory, this paper concludes the kinds of urban growth, brings forward the emphasis and program to urban growth environment in china. On the bases of urban spatial growth theory, spatial structure and spatial dynamics, this paper establishes the spatial dynamics model system of urban growth. Analyzing the effects of information to urban spatial structure, this paper cognizes the reconstitution of urban spatial structure and the shift principle of urban basic spatial.

在城市增长机制和成因机理理论研究的基础上，对中国城市增长的类型特征进行了系统归纳总结，提出了中国城市增长的环境改革重点和对策；在分析城市空间结构增长原理、城市增长空间动力学过程的时空层次结构及空间动力学过程基础上，建立了城市增长的空间动力学模型体系；在分析信息化对城市空间结构影响的基础上，认知了信息化背景下城市空间结构的重构过程和城市基本功能空间的变化原理。

Then,after analyzing the theories about research on urban green system in the world,the thesis summarizes the order of development、practical experience and inevitable tendency . 2、After analyzing the intrinsic characters and the connection with urban development from the structure of planning and over arrangement structure,the author pays more comprehension to the structure of urban green system and cognizes the order and the connected factors which influence the planning.

从国内外城市绿地系统相关方面研究的发展回顾中总结出城市绿地系统结构的发展规律、建设经验和未来趋势。2、从规划结构和布局结构两方面充分分析城市绿地系统结构的内在本质特征和与城市的相互关系。

Effective local search tactics reaches local searchers when they are ready to buy - with every way that it is possible for them to buy from you.

有效的地方搜索策略达到当地的搜索，当他们准备购买-以各种方式，这是他们有可能从您那里进行购买。

The first two are periodic sentences for their beginnings; and the fifth and the last are also periodic sentences each for the embedding of a parenthetic structure.

1960年代中后期，当战后女权主义和当时的许多其他抗议运动在西欧和北美发展成某种势力时，性别的概念演绎成补充和延伸生物性别差异的概念。