查询词典 analytical equipment

On applying the theory of differential geometry, the research shows the procedure for determining the required cutter path for cutting conical cam profile using a NC milling machine based on the analytical profile expression of conical cam with oscillation conical roller follower or with a translating conical roller follower established in 3D space. The analytical expression of cutter path is provided for a tapered endmill cutter, whose size may be identical to or smaller than that of the conical roller.

应用微分几何理论，以在3维空间所建立的圆锥滚子摆动从动件和直动从动件圆锥凸轮机构凸轮廓面的解析表达式为基础，对数控铣床加工圆锥凸轮廓面所需刀具轨迹方程的建立方法进行了研究，根据所采用的锥形刀尺寸等于或小于圆锥滚子尺寸的情况，推导出相应的刀具轨迹方程的解析表达式。

An analytical expression is presented based on total probability theory to describe the mean annual rate of structural performance level reaching or exceeding a specific limit state, and the analytical solutions are adopted to analyze the seismic risk of a three-span rigid-frame bridge in a specific hazard environment.

六、在全概率理论的基础上推导了结构在特定地震危险性水平下的年平均达到或超过指定极限状态的概率的解析表达式，并用此解析表达式对一个三跨连续刚构桥结构进行了在特定地震环境下的地震危害性研究。

The analytical chemistry for single-cell analysis is coming into being and it has become a hot issue in the foreland of analytical chemistry.

单个细胞的分析化学正在形成，它已成为分析化学前沿领域中的热门课题。

On the basis of analyzing the output signal of a two wavelength beat-wave absolute distance interferometer, this paper proceeds from the realities of the aiming method of the beat-wave interferometer, conducts an analytical investigations on the dependence of the aiming accuracy of the beat-wave interferometer on laser dual-line output power equilibrium, propose two new concepts-a basic aim blind area and a blind area expansion, and establishes an analytical expression between the blind area expansion and the relative power difference of laser dual lines.

本文从拍波干涉仪对准方法的实际出发，在分析双谱线拍波干涉仪输出信号的基础上，研究了双谱线功率不一致与拍波干涉仪对准精度的关系，提出了基本对准盲区和盲区扩大量的新概念，建立了描述盲区扩大量与双谱线相对功率差之间关系的解析表达式。

In the process od analysis and discussion,this paper mainly adopted historical analytical method and the theories-practice related analytical method.

在分析和论述过程中，本文重点采用历史的分析方法和理论联系实际的分析方法。

In this paper, the finite element method and the rotationally periodic analytical method are jointly employed to study the dynamics of fluid-structure coupling systems, the relevant analytical methods and program implement are provided.

本文采用有限元法结合旋转周期分析方法对流固耦合系统的动力性能进行了系统研究，给出了有关的分析方法和程序实现。

In the modeling of recording optics, the main contents of this thesis are: deriving the fourth-order analytical model for the recording optics with auxiliary spherical mirrors and auxiliary uniform-line-spacing plane gratings, providing the numerical ray-tracing models based on Fermat's principle and local search, and analyzing the expansion errors of analytical models.

本文在记录光路建模方面的主要工作是：针对使用辅助球面镜与辅助等间距平面光栅的两种记录光路，推导了四阶解析模型，给出了基于费马原理与局部搜索的光线追迹数值模型，并分析了解析模型的展开误差。

Through the briefings and case analyses of Traditional Analysis, Hindemith Analysis, Schenkerian Analysis , Allen Forte Set Analysis, this thesis is to compare differences in the theoretical basis, analytical steps and analytical results of the above four mentioned harmony analysis.

本文通过对传统分析、申克分析、亨德米特分析、艾伦·福特集合分析中有关和声的分析方法的概要阐述与实例分析，比较这四种和声分析法的理论基础、分析步骤、分析结果等方面的差异。

Based on the sliding response theory of the free-standing equipment, the differential equation of motion of the free-standing equipment under seismic excitations is presented. The equation is solved by Runge-Kutta algorithm, therefore the absolute acceleration, relative velocity and relative displacement of the equipment can be obtained. The sequential coulomb friction model is applied to the analysis.

以前人研究建立的浮放设备滑移反应分析理论为基础，给出了浮放设备在水平和竖向地震输入下滑移反应运动微分方程，选取连续型的库仑摩擦力模型，采用Runge-Kutta法求解浮放设备地震滑移反应运动微分方程，可以得到浮放设备在地震作用下的绝对加速度、相对速度和相对位移反应时程。

To make paper more systematic and practical, this paper has first introduced the development history of CT equipment, then, elaborate construction of system and theworking principle of CT equipment systematically, including the property of X-ray, the absorption law of X-ray for materials, the reconstruction principle of CT image, the structure of software and hardware for CT equipment. Finally, with 2 CT systems that we used, statistic and analysis of all the malfunctions which have carried out in passed 10 years was given, and according to the systematic parts of fault located, classify the malfunctions, then elaborate their working principle one by one, analyze the regularity and the characteristic of each malfunction, and put forward specific prevention method and measure for the malfunction.

为了使论文更具系统性和实用性，本论文首先介绍了CT设备的发展史，然后比较系统地阐述CT设备的工作原理及系统结构，包括X射线的特性和物质对x射线的吸收规律，CT图像的重建原理，CT设备的软、硬件结构等，最后以我们所使用的2台CT为例，对10余年来所出现的故障进行了全面的统计分析，并按故障所处的系统部件进行分类，然后逐个阐述其工作原理，分析其故障的特点和规律，并就这些故障提出具体的预防方法和措施。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。