结构

The entire system was designed dustproof and compact, with all the parts closed in the tube.

整体结构采用了防尘防腐的封闭式结构设计，机械装置封装在支柱内部，且结构紧凑。

Therefore, understanding the change of physicochemical structure is the key to deeply knowing the mechanism and process during coalification.

13C-NMR核磁共振技术是一种无破损的结构分析方法，可从定性及定量的角度对煤结构特征进行分析，已被广泛的应用在煤结构的研究中。

Considering that both the solution of the structure natural vibration frequency and mode as well as its elastic stability coefficient can transform into eigenvalue problem of the structure dynamic equilibrium equation, taking the fundamental frequency and the elastic stability coefficient of the structure as the evaluation criteria, the possible arrangements of Mi-brace and X-brace for halfthrough CFST arch bridge with 360 m span were comparatively analyzed, and the advices for the reasonable space of the Mibrace and the X-brace were advanced.

鉴于结构自振频率、振型及弹性稳定系数的求解均可转化为源自结构动力平衡方程的特征值问题，先以结构基频及弹性稳定系数为衡量标准，对一座360 m跨的中承式钢管混凝土拱桥可能的米字撑及X撑布置方案进行了分析对比，并据此提出了X撑及米字撑的合理间距。

Based on the analysis of the single-ring resonator, both the transfer functions of parallel-coupled structure and the ones of series-parallel structure in multiple-ring high order resonators are derived using the transfer matrix method. And the influences of the length of straight waveguide between rings, coupling coefficients between rings, coupling coefficient between straight waveguides and ring, the number of rings and the radii of rings on spectral response are also analyzed. Spectral response at drop channel with maximally flat response pass bands and sharper roll-off could be achieved by optimizing these parameters, so as to improve the performance of output spectral response.

在分析单环结构的基础上，利用传输矩阵法，推导了多环并联和多环串联两种耦合结构的高阶谐振器的传输函数公式，分别分析了并联环间直波导的长度、串联环间耦合系数、环与直波导间的耦合系数、环个数和环半径对相应结构输出特性的影响，通过优化这些参数实现下话路输出光谱具有通带的最大平坦性和过渡带良好的滚降特性，从而达到改善其输出光谱特性的目的。

The cable and the tension bar which belong to the basic frame member of the prestressed long-span steel structure system are high strength steel members which had been subject to cold-work hardening and hot rolling and modified treatment separately.

预应力大跨度钢结构体系的大变形倒塌失稳极限状态是结构安全的控制因素，其基本构件索与拉杆的延性性能分析研究对结构体系的安全设计至关重要。

The metal structure of crane telescopic boom is analyzed and optimized by structure analysis and the combinatorial optimization based on topology and size optimization methods, and structure integrated design of telescopic boom is achieved by the development of visual software system in this paper.

本文应用结构初级分析和基于拓扑优化、尺寸优化的组合优化分析方法对起重机的伸缩臂金属结构进行优化设计，同时开发可视化软件系统实现伸缩臂结构的集成设计。

In Chapter 4, there are two important structures, loops and stacks for an abstract single-strand RNA. Based on the method of combinatorial enumeration, we make a new discussion about the enumeration problem and get its approximation with the limited length of end loop.

第三部分：RNA二级结构是由一些环和茎组成的结构，在此基础上，本节以端环中自由基数为参量，我们又利用组合技巧解决了一类RNA二级结构的计数并给出了它们的近似值。

According to the objective and requirement of Army Command Control Information System and the change of position of Army in current war fare and the application requirement of distributed operation environment of staff transferring from high level to lower level command post,this paper describes the architecture of the Army Command Control Information System from the view of operation architecture and system architecture.

针对陆军指挥控制信息系统的目标和需求，及其在现代战争中地位的变化，适应多级指挥所多席位分布作战环境的应用需要，从作战体系结构和系统体系结构两个方面对陆军指挥控制系统的体系结构进行描述，并且对该系统实现的总体功能、作战信息流程、工作模式和系统应用集成等方面进行设计。

With the results which include performance point , shear force-displacement , distribution of the plastic hinges and so on, and has carried on the comparison with the elastic response spectrum method and the time-history method . An appraisal has been made after considering the structure earthquake resistance performance.

分析结果包括结构在小震和强震下的性能点和顶点位移，底部剪力-顶部位移，结构破坏时塑性铰的分布等，并与弹性反应谱法和动力时程分析的结果进行了比较，利用分析结果对结构的抗震性能做出了评估。

The aim of the research is to propose a newly quantified annoyance method to replace the commonly used semi-quantified method for vibration serviceability design.Annoyance rate and AR-based operations,i.e. expected AR and average AR,consist the major contents of the AR model. The basis of AR model was complementally introduced in Chapter 3 and through which different AR curves for several types of application purposes were suggested.

本文结合结构动力学，可靠度理论和心理物理学，提出了基于烦恼率的结构振动舒适度设计理论模型，其目的是使工程结构振动舒适度的设计方法从原来的半定量设计阶段提高到定量设计、可靠度设计和优化设计阶段。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。