查询词典 atom structure

Geometries of two-dimentional hexagonal net and one-dimentional chain of C36 polymers were optemized by using PM3 and B3LYP/6-31G method. Their electronic structure and stability were also discussed . Band structure were calculated at ab initio level . Compered to the solo C36 molecular ,the results indicated that C36 unit"s structure in the polymers changed obviously and the polymerization increased the system"s stabilities .

本文在系统总结具有纳米尺度的碳团簇研究现状的基础上，着重开展了如下四方面的工作：首先采用PM3和B3LYP／6-31G方法对2D六方网状，以及1D链状C36聚合体的构型进行全优化，探讨了其电子结构和稳定性；并在从头算水平上计算了相应的能带结构。

On the basis of the definition of the extraordinary Radon transform, the theory of rebuilding image from extraordinary Radon transform result is proposed, and some category such as image structure notation, topology of image structure notation and topological space, homeomorphism in topological space, equivalence of homeomorphism relation, topological constant of image structure notation.

与现有的基于区域内部或外形变换的形状分析方法相比，在理论方法上本质不同的是，本文提出的广义Radon变换，直接将原始的图象数据影射到特征空间，给出图象构图特征的描述，给出了可以用来进行图象检索或图象识别的结构特征谱。

The article still put forward simple, use two turns to cut model child the deflection that the structure regards independent structure as to fall in horizontal strength effect, tectonic and double turn is cut model the method that the structure issues horizontal deflection in effect of same standard strength, contrast makes clear, the deflection that this kind of construction comes out and accurate solution deflection are very adjacent.

本文还提出了一个简单的、利用两个弯剪型子结构作为独立结构在水平力功能下的挠度，构造双重弯剪型结构在相同水平力功能下水平挠度的方法，对比表明，这种构造出来的挠度和精确解挠度非常接近。

So good, read a book, look big the hornbook of 2 computer science departments, see programmer manual, see server knowledge, see a website run an environment, read code, read the code of others, change code, change the code of others, write code, write oneself code that think of, take paper, keep website structure, take a pen, keep database structure, take small easel, draw website structure to pursue, my sweat, I feel suddenly I bring into contact with a term that clinking ox compares, UE stylist.

那么好，看书，看大二计算机系的入门书，看程序员手册，看服务器知识，看网站运行环境，看代码，看别人的代码，改代码，改别人的代码，写代码，写自己的想到的代码，拿来纸，写网站结构，拿来笔，写数据库结构，拿来小画架，画网站结构图，我汗，我忽然觉得我又接触到了个无比牛比的词，UE设计师。

The anatomical study deepens the knowledge of G-type conducting cells: 1 It proves the theory of two depositional process for secondary wall (Bierhorst, 1960): the discontinuous cellulose layer is laid down before the continuous lignified layer; the former layer is prone to be broken down, while the latter is highly decay-resistant; 2 It suggests that the cellulose primary and secondary walls of tracheids are not perforated. Instead of longitudinal pits (Li, 1992), the lignified tracheid secondary wall of Hsüa possesses irregular simple perforations; 3 In Hsüa reflexa and Huia gracilis, the perforation casts may represent the thickness of lignified secondary wall; 4 The wall structure of G-type tracheid is diversified. At the genus level, the secondary wall structure differs in the distribution, internal shape and structure of the perforations; 5 Perforations of some G-type tracheids combine the characters of S-type tracheids in their distribution, density and diameter.

解剖学的研究加深了对G-型输水管胞的认识 1）验证了管胞次生壁分两个阶段形成的理论（Bierhorst，1960），即先后形成不连续的纤维质层和连续的木质化层，前者易被分解，后者抗侵蚀性强；2）证明管胞纤维质的初生壁和次生壁不具穿孔，Hsüa管胞的木质化次生壁具有不规则的简单穿孔，而不是纵列的纹孔（Li，1992）；3）Hsüa reflexa和Huia gracilis的穿孔铸体可代表木质化次生壁的厚度；4）G-型管胞壁层结构具多样性，植物属一级的分异主要表现在次生壁穿孔的分布、孔腔形状和结构的不同；5）某些G-型管胞的穿孔在其分布、密度和孔径方面可兼有S-型管胞的特征。

The structure and parameters of the nozzle of a jet mill device are optimized, numerical simulations of the inner structure are carried out with hydrokinetics software, the stress analysis of the structure is conducted with finite element software, and the effects of inlet diameter, section area of throat region, passage shape and diffusion angle on supersonic nozzle are analyzed.

对气流粉碎装置的喷嘴结构和参数运用均匀设计法进行设计与优化，采用流体动力学软件对所设计喷嘴进行流场模拟，应用有限元分析软件对喷嘴内部结构受力情况进行分析，对喷嘴效果进行检验。

The reinforced concrete structure is in the present construction uses the most widespread one kind of structure, because the construction quality, designs, the function change improper and so on many kinds of reasons, needs to carry on the reinforcement to guarantee the safety of structure and the reliability.

留学解答资讯网：钢筋混凝土结构是目前建筑中使用最广泛的一种结构，由于施工质量、设计不当、功能改变等多种原因，需要进行加固来保证结构安全性和可靠性。

The conventional measures can increase the seismic force acted on the structure while enforcing the seismic resistant capacity of the structure, and incoordinate the relations between the strength and the ductility of structure.

常规抗震加固措施在加强结构的同时，也会增大结构所受到的地震力，很难协调好加固后结构的强度和延性两方面要求。

Under the economic adaptability and the profit inductivity of different growth poles, the regional financial institution should adjust their service structure and scale structure spontaneously, carry on the financial innovation effectively, reduce the financial risk, enhance finance function and the disposition efficiency of financial resources, and thus realize the regional financial structure optimization and the regional financial development.

区域金融主体在适应不同的增长极经济发展的前提下，在各自经济利益的诱导下，驱使自发的调整业务结构、规模结构、有效实现金融创新，降低金融风险，增强金融功能，提高金融资源配置效率，从而实现区域金融结构优化和区域金融发展。

Fire protection methods of the steel structure are an ineluctability problem relative to the reinforced concrete structure, because the action of high temperature will make the intensity and strength of the steel structure decrease quickly.

相对于钢筋混凝土结构，钢结构在高温下，其强度和刚度都将迅速降低，承载力也随之降低，使得钢结构在较短时间内达到极限状态以至破坏。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。