Lesson29Oscilloscopes.ppt

1、Lesson 29 Oscilloscopes 电子信息工程专业英语教程任治刚 主编 电子工业出版社 ,Unit 10 Electronic Instruments permeate. 遍及，渗透,2020/7/27,电子信息工程专业英语教程,19,Pervade in text,Energy, vibrating particles and other invisible forces pervade our physical universe. 在物质宇宙中，到处存在着能量、振动粒子和其他人眼看不见的作用力。,2020/7/27,电子信息工程专业英语教程,20,Fundamental in

2、 dictionary,Of or relating to the foundation or base; elementary: 基础的；根本的： the fundamental laws of the universe. Forming or serving as an essential component of a system or structure; central: 主要的 an example that was fundamental to the argument. Of great significance or entailing major change: 极其重要的

3、 a book that underwent fundamental revision.,2020/7/27,电子信息工程专业英语教程,21,Fundamental in dictionary,Of or relating to the component of lowest frequency of a periodic wave or quantity. 基波的 Of or relating to the lowest possible frequency of a vibrating element or system. 最低频率的 Having the root in the bass

4、: 基音的,2020/7/27,电子信息工程专业英语教程,22,Fundamental in dictionary,Something that is an essential or necessary part of a system or object. 基础 The lowest frequency of a periodically varying quantity or of a vibrating system. 基频,2020/7/27,电子信息工程专业英语教程,23,Fundamental in text,Even lightpart particle, part waveha

5、s a fundamental frequency, which can be observed as color. 甚至是光半波、半粒子也有基波频率，这个频率在人看来就是颜色。,2020/7/27,电子信息工程专业英语教程,24,Fundamental in use,basic fundamental 基本原理 crystal fundamental 晶体基频 digital television fundamental 数字电视基础 image fundamental 图象基础,2020/7/27,电子信息工程专业英语教程,25,Demand in dictionary,To ask fo

6、r urgently or peremptorily: 要求 To claim as just or due: 要求 To ask to be informed of: 要求 To require as useful, just, proper, or necessary; call for: 要求 To claim formally; lay legal claim to. 要求,2020/7/27,电子信息工程专业英语教程,26,Demand in dictionary,The desire to possess a commodity or make use of a service,

7、combined with the ability to purchase it. 需求 The amount of a commodity or service that people are ready to buy for a given price: 需求量,2020/7/27,电子信息工程专业英语教程,27,Demand in dictionary,A coding technique in which a command to read or write is initiated as the need for a new block of data occurs, thus el

8、iminating the need to store data. 需求,2020/7/27,电子信息工程专业英语教程,28,Demand in text,As the eyes of the engineer, oscilloscopes are the key to meeting todays demanding measurement challenges. 示波器就像工程师的眼睛一样，它是完成当今苛刻测量任务的关键仪器。,2020/7/27,电子信息工程专业英语教程,29,Demand in use,demanding 费力的，费神的 exhausted by a demanding

9、 job 苛刻的 a demanding boss,2020/7/27,电子信息工程专业英语教程,30,Archive in dictionary,A place or collection containing records, documents, or other materials of historical interest: 档案馆，档案室 A repository for stored memories or information: 存储场所 the archive of the mind.,2020/7/27,电子信息工程专业英语教程,31,Archive in text,D

10、SOs allow you to capture and view events that may happen only onceknown as transients. Because the waveform information exists in digital form as a series of stored binary values, it can be analyzed, archived, printed, and otherwise processed, within the oscilloscope itself or by an external compute

11、r. DSO能够捕捉、观测那些可能只出现一次的事件 暂态事件。由于波形信息是以一组二进制值的数字形式存储的，所以可以对这些信息进行分析、存档、打印和处理；这个过程既可以在示波器内部进行，也可以在计算机上进行。,2020/7/27,电子信息工程专业英语教程,32,Legible in dictionary,Possible to read or decipher. 清楚的，易读的 Plainly discernible; apparent: 清晰可辨的；明显的 legible weaknesses in character and disposition.,2020/7/27,电子信息工程专业英语教程,33,Legible in text,In addition, analog oscilloscopes have focus and intensity controls that can be adjusted to create a sharp, legible display. People often prefer analog oscilloscopes when it is important to display rapidly varying signals in “