标准频率和时间信号电台

数学英语 23 What are the Range and Standard Deviation?

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(132) / 评论(0)

数学英语

Free Up Mental Space With More 'Bandwidth'

Welcome to Words and Their Stories, from VOA Learning English. On this program we explore common expressions in American English. Like all languages, our expressions come from everywhere. They come from nature, sports, and food. They come from money,

发表于:2018-12-08 / 阅读(192) / 评论(0)

2018年VOA慢速英语(七)月

《名人传记》之乔布斯遗失的访谈27:一次奇妙的经历

So I became very err.... captivated by computer. 我完全给计算机迷住了 And a computer to me was still a little mysterious 当然计算机对我而言仍然有些神秘 cause it's at the other end of wire,I had never really seen the actual co

发表于:2018-12-27 / 阅读(69) / 评论(0)

名人传记

ESL露西的一天第62期:乘坐公共交通工具去上班(2)

I like my job but it takes over an hour to get there from my part of town. 我喜欢我的工作，但从我这边到那里要花一个多小时。 First, I walk three blocks to the subway station and swipe my monthly pass to get through the turnstil

发表于:2018-12-28 / 阅读(62) / 评论(0)

ESL露西的一天

ESL露西的一天第50期:乘坐公共交通工具去上班(1)

发表于:2018-12-28 / 阅读(121) / 评论(0)

ESL露西的一天

VOA慢速英语2018--US Timekeeping Stations Might Go Silent

Three radio stations in the United States mainly broadcast one thing: the official time. The three are radio stations WWV and WWVB, in the state of Colorado, and WWVH, on the island of Kauai in Hawaii. They send out signals that are used by millions

发表于:2019-01-03 / 阅读(107) / 评论(0)

2018年VOA慢速英语(九)月

电信专业英英词典C-1

Cache - Generally, a place to temporarily store something. Regarding computers and telecommunications, it is a place where data is temporarily stored during transmission. Call - This is a connection b

发表于:2019-01-03 / 阅读(111) / 评论(0)

电信英语

电信专业英英词典D-2

Delay - This is the wait time between to specific events, and regarding satellite communications, it is the time it takes for a signal to go from the transmission station up to orbit and through the s

发表于:2019-01-03 / 阅读(104) / 评论(0)

电信英语

电信专业英英词典M-3

Multimode Optical Fiber(S) Multimode fibers, with much wider cores than single mode fibers, allow light to enter at various angles, and reflect (bounce off of) core-clad boundaries as electromagnetic

发表于:2019-01-03 / 阅读(125) / 评论(0)

电信英语

电信专业英英词典F-2

Focal Length - Distance from the exact center of the dish to the center of the feed. Focal Point - The physical point in space toward which the satellite reflector dish directs the received signal so

发表于:2019-01-03 / 阅读(122) / 评论(0)

电信英语

电信专业英英词典F-4

Frame In time division multiplexing systems, Frame is a sequence of time slots each containing a sample from one of the channels carried by the system. The frame is repeated at regular intervals, (nor

发表于:2019-01-03 / 阅读(107) / 评论(0)

电信英语

电信专业英英词典E-1

Earth Station - The term used to describe the combination of antenna, low-noise amplifier (LNA), down-converter, and receiver electronics that are used to receive a signal transmitted by a satellite.

发表于:2019-01-03 / 阅读(105) / 评论(0)

电信英语

电信专业英英词典A-3

AT Command - This is the character

发表于:2019-01-03 / 阅读(112) / 评论(0)

电信英语

电信类英语词汇表大全-37

中文英文缩写多功能话务台 Multi-function Attendant Console MAC 多功能信息分配系统 Multi-function Information Distribution System MIDS 多级存储管理 multi-tier hierarchical

发表于:2019-01-03 / 阅读(118) / 评论(0)

电信英语

VOA慢速英语2012 Economics Report - How Gold Became the Gold Standard for Trade

Economics Report - How Gold Became the Gold Standard for Trade 经济报道 - 黄金是如何成为贸易金本位的？ This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 The best example of something

发表于:2019-01-12 / 阅读(142) / 评论(0)

2012年VOA慢速英语(四)月

TED演讲:听到的色彩(1)

Well, I was born with a rare visual condition called achromatopsia, which is total color blindness, 我出生在一个色彩极少的世界,世界只有明暗之分，这叫做全色盲 so I've never seen color, 所以我不知道什么是颜色， a

发表于:2019-01-18 / 阅读(100) / 评论(0)

TED演讲国际问题篇

TED演讲世上最无聊电视节目为何迷得无可救药(2)

We brought it on air in November 2009. 我们在2009年11月的时候播出了这个节目。 But no, this was far more attractive. 但其实，这节目火了起来。 This is the five biggest TV channels in Norway on a normal Friday, 这张图是挪威

发表于:2019-01-18 / 阅读(108) / 评论(0)

TED演讲娱乐篇

英语词汇分类：铁路英语词汇

elevated railway, overhead railway, aerial railway 高架铁路 mine railway 矿区铁路 funicular (railway) 缆索铁路，登山铁路 light railway line 轻便铁道 urban railway 市区铁路 rai

发表于:2019-02-05 / 阅读(118) / 评论(0)

英文语法词汇

Disappearing words

Disappearing words 消失的文字 Kate: Hello, I'm Kate Colin and this is '6 Minute English' - and thanks to Jackie Dalton for joining me today. Good Morrow Jackie! Jackie: Ehpardon? Kate: Good Morrow! I beseech thee, whence comest thou? Jackie: ErmmKat

发表于:2019-02-06 / 阅读(108) / 评论(0)

六分钟英语

【英语时差8，16】外星人来电，说什么？

the previous show Don and Yael discussed communication from other worlds. Well, as it turns out if E.T. does try to phone it will be much more complicated than can you hear me now? D: Okay, Yael, so suppose one day scientists pick up a transmission t

发表于:2019-02-23 / 阅读(108) / 评论(0)

英语时差8，16

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学英语单词

acetylcholine agonist

asynchronous sending mode

baccha (baccha) maculata

biliene

biographising

bowiss