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First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先，论文介绍了无刷直流电动机的特点、发展和应用概况，分析了稀土永磁无刷直流电机系统的基本构成、工作原理和控制方法；在对目前各种电动转辙机驱动电机分析的基础上，提出将稀土永磁无刷直流电机用于铁路转辙机，以替换原有的串励有刷直流电动机。

And now let us postulate the existence of tribes, organised on what we shall call, for the want of a better name, the principle of exogamy — that is, which prohibited marriage within the tribe — and whose tribesmen were thus dependent on other tribes for their wives. It is obvious

现在让我们假定部落的存在，在我们因为需要一个更好的名称将称为异族结婚的原则上组织起来并且其部落男人因此为得到他们的妻子依赖于其他部落。

On the one hand,it is required to explicate the relations between the realization of the principle of human rights and the state power ;on the other hand,maybe,it is more important to perfect the system of the NPC.

一方面，明晰人权原则的实现与国家权力之间的关系，明确国家权力之间监督机制的必要性；另一方面，对我国宪法而言，人权原则的实现，或许更重要的是人大制度的完善及其功能的有效发挥。

Our logistics development of the straits western side economic zone may focus on the constitution of the straits western side economic zone. With the booming of economy and merchandise trade, our province can base on the relation between the straits, set up all kinds of regional distribution centers and town distribution centers, and built logistics information network system. According to the principle of "government driving, corporation attending, market acting, circulation fade-in", our province can form efficient and effective the straits western side economic zone logistics network system, which it can touch the international logistics network, link up the logistics network of Bohai Bay Region, Yangtze River Delta Region and Pearl River Delta Region and join the Taiwan Strait logistics network.

我省海峡西岸经济区现代物流发展应围绕海峡西岸经济区建设为中心，依托经济发达商贸繁荣，立足两岸关系的前沿阵地，按照"政府推动、企业主体、市场运作、循环渐进"的原则，发展各具特色的区域流通中心和城市流通中心，建设全方位物流信息网络系统，逐步形成结构合理、布局科学、技术先进、运转高效、畅通完整的海峡西岸经济区物流网络系统，实现与国际接轨，衔接长江三角洲、珠江三角洲，对接台湾海峡两岸的海峡西岸经济区现代物流功能。

On the basis of analysis to the working principle of R801, the flyweight's lift and the governor's movement model were constructed, and the effects of different profiles of limit cam on the governor's operating characteristic were discussed.

在深刻剖析了该调速器工作原理的基础上，建立了飞锤升程模型和机构运动模型，并讨论了限位凸轮的形状及其与调速器的装配关系对调速器调速特性的影响。

Based on the theory of fracture mechanics and the principle of structural reliability analysis,a computation formula of the fatigue failure of suspension cable system in a suspension bridge caused by alternate stress is deduced,thus an evaluation method on the safety life of suspension cable system which has been subjected to eroding is suggested,according to which,highway administration departments can arrange the opportunity of detection,maintenance and strengthening of bridges,as well as the investment.

根据断裂力学理论和结构系统可靠性分析原理，推导出交变应力引起的悬索桥吊索系统疲劳失效的计算公式，从而提出的一种考虑构件腐蚀后吊索系统安全寿命的评估方法，可以为公路管理部门合理安排桥梁的检测、维修、加固的时机和投资提供依据。

Hence, the principle of the freedom of fishing on the high seas has been restricted enormously in the last half century while the new epoch of management on the marine resource has been ushered in.

因此，国际海洋法上的公海捕鱼自由原则在最近的半个世纪受到了全面而严格的限制，一个海洋渔业管理的新时代正逐步取代自由捕鱼的旧时代。

Aiming at the defects in agricultural transformer economic running , such as poor maneuverable and inconspicuous effect of energy saving, on the basis of discussing the arithmetic principle and determinant fundamental of economic running realized in agricultural transformer, the transformer economic running real-time monitoring system is developed based on Profibus-DP field bus.

针对目前农用变压器经济运行可操作性差、节能效果不明显等缺点，在讨论了农用变压器实现经济运行的算法原理及判定原则的基础上，开发了基于Profibus-DP现场总线的变压器经济运行实时监控系统。

Based on the analogy of structural mechanics and optimal contro1, and a1so based on carrying the minimum potential energy variational principle in elastici- ty to the generalized one, the theory of Hami1tonian system can be introduced into theory of e1asticity and e11iptic PDE. The transverse eigensolutions of the Hamiltonian operator matrix and its expansion solution method can be deduced.

利用结构力学与最优控制相模拟的理论，将弹性力学势能变分原理导向部分一般变分原理，并将哈密尔顿体系的理论引入到弹性力学与椭圆型偏微分方程之中，导出一套横向哈密尔顿算子矩阵的本征函数向量展开解法。

The project proposed and established the strict unique mathematical model of instantaneous frequency aiming at the currently existed problems in Hilbert Huang Transform form the viewpoint of physical connotative meaning; proposed and established the strict mathematical model of general intrinsic mode signal based on the concept of general continuous intrinsic mode signal and the compositive principle of practical general intrinsic mode signal; researched and proposed the fitting method of envelope lines in HHT from the viewpoint of theory, conquered the blindness and random in quondam EMD envelope line fitting and boundary treatment; developed a virtual time-frequency analyzer based on general intrinsic mode signal decomposition to open out the local time-frequency characteristics of nonlinear and nonstationary signal more deeply and accurately.

本项目针对希尔伯特-黄变换现阶段存在问题，从物理内涵的角度提出并建立了瞬时频率严格的唯一的数学模型；基于连续性的一般固有模态信号的概念和实际信号的一般固有模态信号的组成原理，提出并建立了一般固有模态信号严格的数学模型；从理论角度研究并提出HHT中的包络线构造方法，克服了原EMD的包络线构造和边界处理的盲目性和随意性；研发一台基于一般固有模态信号分解的虚拟式时频分析仪，使之可以更深入、准确地揭示非线性非平稳信号的时频局部特征。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。