查询词典 relay

The 20-year-old speedster became the first American woman to win three gold medals in track when she won the 100- and 200-meter dashes, then anchored the victorious, record-breaking 400-meter relay team. 1972年慕尼黑Munich

当年20岁的"飞人"鲁道夫先是摘取了100米、200米短跑桂冠，然后又在4×100米接力赛中担任最后一棒，打破记录再夺金牌，从而使她成为美国历史上第一位在田径项目中勇夺三块金牌的运动员。

On the basis of the theory of protection functions, the algorithm of data processing used in the relay is introduced, and then theory and implementation of Fast Fourier Transform is discussed in detail.

本文在分析各种保护功能原理的基础上，介绍了保护和测量中采用的数据处理算法，详细论述了快速傅立叶变换的原理与实现。

Three-phase current protection relay is one of the important forms of protection.

三段式电流保护是中一种重要的保护形式。

The research work of this paper is divided into five parts: The first ,according to the work characteristics of ship's auxiliary boiler, this paper is to design applied project in the automatic control system of ship's auxiliary boiler; The second, according to the work request of the cargo winch of alternating three-speed change-pole speed-adjusting, this paper is to determine adopting the method of the PLC control; The third, this paper is to design PLC application in three -phase induction motor control, to give the ladder chart, program and input and output circuit diagram; The fourth, this paper is to research the method of the ship's combined starting screen automatic control with the PLC; The fifth, this paper is to inquire the possibility of apply the PLC in ship's engine room surveillance system; According to the comprehensive analysis of above actual example of ship's auxiliary machinery automatic system with the technique of PLC; not only can use the technique of PLC to replace traditional relay-contactor control technique in ship's auxiliary machinery automatic system, but also can get the conclusion of the former is more dependable and more clever than the latter, the maintenance is more convenient, thus develop a new path for ship automation.

本文研究的工作主要包括五个部分：第一，根据船舶辅锅炉的工作特点，设计PLC在船舶辅锅炉自动控制系统中的应用方案，主要有PLC选型及输入输出点的设计，画出系统控制梯形图并分析工作原理；第二，根据交流三速变极调速起货机的工作要求，确定采用PLC控制的方法，进行控制系统的硬件设计和软件设计，并分析工作原理：第三，设计了PLC在三相异步电动机控制中的应用，给出了控制梯形图、程序及输入、输出接线图；第四，研究了用PLC实现船舶组合起动屏自动控制的方法，进行了系统的电源设计和软件设计，给出系统工作流程图；第五，探讨了船舶机舱监视系统应用PLC的可行性，将继电器报警线路改为用PLC控制报警，给出系统硬件图和软件梯形图，并分析了PLC机的选型、抗干扰和应用PLC的经济效益和社会效益等问题。综合以上船舶辅助机械自动控制系统采用PLC技术的实例分析，可以得出船舶辅助机械自动控制系统不但可以使用PLC技术取代传统的继电器接触器控制技术，而且前者比后者更可靠、更小巧，维护保养更方便的结论，从而为船舶自动化开辟了一条新的路径。无忧毕业设计网 www.5ubs.cn

This pneumatic relay's Near Zero Throttling and Pilot Staging result in true snap-action in your application.

这种气动继电器的近零节流和试点分期真正的管理成果在应用程序中的行动。

What has the relay to do with sport It is not some timeworn practice integral to the games.

圣火传递与体育到底有什么关系呢？

This is the quickest way to get into debt, especially if you regularly have to relay on your credit card the week before pay day.

这是最快捷的方式进入债务，特别是如果你经常要在您的信用卡接力前一周发薪日。

Kurt told Olivia,"Stay here and relay signals topside."

库尔特告诉奥莉维亚，"守在这里转发上面的信号。"

Lin Li was the first torchbearer of the Olympic torch relay in San Francisco,America.

林丽是奥运火炬旧金山传递的第一棒。

As a part of"Principle and Technology Research of Relay Based on Travelling Wave and Wavelet Transform", a project supported by National Nature Science Foundation of China under Contract No.

本文的研究工作是国家自然科学基金项目"基于小波变换的行波保护原理与技术的研究"的一部分。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。