拖动

This thesis in term of characteristics hereinbefore, adopted slippage and differentia rotate speed theory of electromagnetism to imitate differently road conditions of appendiculate quotiety.

并以此为基础，进一步分析了车轮在滚筒上被拖动时、制动时和急加速时的受力情况，建立了附着力与电磁滑差离合器输出力矩之间的力学模型。

It introduces a kind of novel loading test system, based on the operation principle of damper. this loading system is operated by the driving motor. it realizes the loading, in that the damper has a negative drive force that puts on the motor. Based on the ordinary electromagnetic damper, the thesis presents a novel hybrid excitation electromagnetic damper which has adjustable work characteristic, analyses the working principle and structural feature of the electromagnetic damper, deduces the formulas to calculate the eddy current density through the Electromagnetic theory, analyses the distribution of the eddy current in the cotyloid rotor, and also studies the method of calculating the damp torque, establishes the mathematical model of the electromagnetic damper, analyses the relationship between the electromagnetic damper structural parameter and damp torque, researches the engineering design and analysis method of the electromagnetic damper, provides theory foundation for the design and analysis of the electromagnetic damper, contrives a hybrid excitation electromagnetic damper that satisfies the target request, designs a set of compound excitation electromagnetic damping loading control system whose control core is AT89C51 monolithic integrated circuit, analyses the electric circuit part, and carries on the experimental test to this set of electric circuits. Finally it debugs this electromagnetic damping loading system, this system satisfies the target request proposed.

论文提出了一个全新的加载测试系统种类，该加载系统是在阻尼器工作原理基础上，利用电动机拖动阻尼器运转，从而阻尼器产生一个与运动方向相反的阻尼力矩，该力矩作用在电动机上实现对电动机加载测试；同时，论文在一般电磁阻尼器基础上提出了一种新型的可调式复合励磁电磁阻尼器结构，该种阻尼器的工作特性在一定范围内可进行调节；论文分析了电磁阻尼器的工作原理和结构特点，运用电磁场理论分析推导了电磁阻尼器的涡电流密度公式，分析了涡电流在转子杯内的分布图，并对阻尼力矩计算方法进行了研究，建立了电磁阻尼器的数学模型，分析了电磁阻尼器结构参数和阻尼力矩之间的关系，对电磁阻尼器的设计和分析方法进行了研究，为电磁阻尼器的工程设计建立了理论基础；设计了满足技术指标要求的复合励磁电磁阻尼器和一套以AT89C51单片机为控制核心的复合励磁电磁阻尼加载控制系统，对该控制系统硬件电路各部分进行了分析和设计，对软件进行了设计，并对控制电路进行了试验调试，该系统满足所提出的加载指标要求。

This type of robot running scope is big, in the running process, don't need towing plenty cable, but the control is discommodiousness, especially the user can't take part in the running control of robot, even if it can execute some user enactment, is also very simple operation.

此种机器人运动范围大，运行中不用拖动大量的电缆，但是控制不方便，特别是用户不能干预机器人的运行控制，即使能执行某些用户设定，也是很简单的操作。

Based on the analyzing of Item bank system, we've bring forward the pattern to build a test item bank system and idiographic methods to integrate the test questions. To compile the test questions by the Rich Text Format; to drag the test questions discretionarily with the mouse; and use word to build a finished paper, which become a word document.

本文通过对题库系统的研究，提出试题库构建以及试卷生成的具体方法：用RTF富文本形式编辑试题，用拖动方式人－机交互组卷，用Word对象将编辑好的试卷生成Word文档。

This is considered preferable, but watch out: It is well known that when users find out a program scrolls in direct response to dragging the scroll bar thumb, they will frenetically jerk the thumb back and forth trying to bring the program to its knees.

这是考虑过更好的，但是当心：众所周知当用户发现程序滚动直接响应拖动滚动条滑块时，他们将狂热地拉回滑块并且尝试强制将程序返回它原来的地方。

This paper introduces a novel gearless drive system of low-speed and high-torque PMSM for elevator.

本文介绍了一种基于电梯用低速大转矩永磁同步电动机的无齿轮拖动系统。

Oil film thickness along the piston skirt in motored engine was measured, and the comparison with theory result was given.

最后在实验研究中，本文国内首次在活塞裙部油膜厚度中采用了激光荧光诱导的测试方法，主要工作是：分析了激光荧光诱导法的基本原理，建立了测膜厚的基本定量关系模型，通过实验分析了膜厚测试的各种影响因素，通过实验对不同香豆素荧光光谱和激发光谱特性进行了分析，通过实验确定了选取香豆素的种类和溶液浓度的基本原则，自主开发了以光纤为光学光路的测试系统并对系统进行了标定，对内燃机冷拖动状态的活塞裙部进行了实测，并与理论测试结果进行了对比。

Automatic Control System of Power Driving is a specialized course for the student majoring in engineering such as machinery and electronic, Simulation electronic and Digital electronic technology , Automatic control principle are precourse for it.

电力拖动与控制是机电类专业的一门专业课程。该课程的先行课是电子技术、自动控制原理。开设目的是为系统学习变频技术等课程打下基础。

Thirty-five patients with carcinoma of the lower rectum were completed the cutting operation passing the belly in Dixon operation, clamping the sigmoid at the 5 cm of location for anastomosis passing anus to insert one piece of 22# foley urea pipe, using 15-20 mL of water filling into urea pipe ball bag, then pulling urea pipe to stop with clear blockage, and passing urea pope forward recta cavity to fill 100-150 mL of methylene blue dilution to observe the opening of anastomosis.

探讨直肠癌行低位Dixon手术，术中采用肠腔封闭式加压灌注检测及术后放置支架管引流对吻合口瘘的预防作用。1本组低位直肠癌患者经腹腔完成直肠癌直肠前切除吻合后，用肠钳在吻合口上端5cm处钳夹肠管，再经肛门插入1条22#Foley尿管，尿管球囊注入15~20mL水后向外拖动尿管至有明显阻力时停止。

Of the page-views with a scroll-bar, were scrolled all the way to the bottom.

在这 91%中，有 22%的页面浏览，是用户从页面顶部拖动到底部。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。