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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。

In this article, the stress inside a quantum-wire structure is studied. Based on the derived expression of the stress inside a quantum-wire structure with arbitrarily shaped cross section, the analytical solution of the stress inside a trigonal quantum-wire structure in an infinite matrix is obtained.

研究了晶格失配和热失配在半导体量子线结构中所产生的弹性场，在分析圆柱形量子线结构弹性场的基础上，推导得到了任意截面形状量子线结构解的一般形式，并给出无限大基体内横截面为三角形量子线结构的解析结果。

Moreover, as for the personal issues of disease-writing, spirits structure is quite easy to be neglected. However, the four life experience—disease, insaneness, death and remedy are the essences of spirits structure. With the quantified statistics of context, this thesis extends the spirits structure to concrete observation on social phenomenon, and associates internal personal spirits and external social environment.

除此之外，在疾病书写的个人议题上，精神构图是为另一种易被忽略的空间，而疾病、疯狂、死亡与疗愈四种生命经验，则是影响精神图像组成重要的元素，本论文并配合量化的文本统计资料，将抽象的精神构图延伸至具体的社会现象观察，使讨论的焦点得以由个人内在精神空间扣合至社会外延空间。

According to displacement overrun failure criterion and structure instability failure criterion, integral seismic capacity of structures is obtained. Verification of the optimal structure from pushover analysis can be performed by comparing each structure\'s integral seismic capacity.

本文分析结果表明：增大巨型梁高更能有效地进步结构抗震能力；部分采用防屈曲支撑改变了巨型钢框架的失效模式，不仅进步了结构弹性极限能力，而且使得抗震性能得到明显的改善。

After understanding hydrocyclone's structure and its separating factor of performance by improving on its interior flow field's angle embarking in the concept design phase, we have made full useful of a new conceptual method about TRIZ(Theory of Inventive Problem Solving) and TOC, that is to say, we have made the innovative design of compound hydrocyclones and vibration isolation of electrical machinery combining TRIZ tools with the TOC logical thinking tool,, and devised one kind of new entrance structure, turnstile shape and overflow structure for de-oiling compound hydrocyclones.

在全面理解水力旋流器的结构和影响其分离性能的因素后，从改善旋流器内部结构流场的角度出发，利用TRIZ和TOC相结合的设计方法，应用到复合式旋流器创新设计和电机的隔振中，从而设计出一种更为高效的入口结构、旋转栅形状及溢流管结构的复合式油水分离旋流器。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？