物理信号[收发]子层

CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs

发表于:2018-12-01 / 阅读(511) / 评论(0) 分类 上海牛津初中英语九年级

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(179) / 评论(0) 分类 听一分钟英文-O

The Importance of Physical Exercise Everyone hopes to live happily in the world. Physical exercise is indispensable to a happy life. There is a famous saying: Life lies on exercise. Although you will not necessarily die without regular physical exerc

发表于:2018-12-18 / 阅读(180) / 评论(0) 分类 英语作文

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(219) / 评论(0) 分类 英语课程学习计划和讲义

【今日基础词】 Physical 【Transcript】 A: Ive heard some friends say when they get the article, its quite different from what they see on the website advertisement. B: That happens. Without close quality examination, we may encounter fraud,

发表于:2018-12-30 / 阅读(119) / 评论(0) 分类 听基础单词练听力

Physical educationby Richard SidawaySchool days are supposed to be the best days of your life and part of that experience usually involves some strenuous physical activity. I asked some colleagues to give me their recollections of what happened to th

发表于:2019-01-02 / 阅读(213) / 评论(0) 分类 英文杂志-Magazine

Channel A channel is a single communications path in a transmission medium connecting two or more points in a network, each path being separated by some means; e.g., spatial or multiplex separation, s

发表于:2019-01-03 / 阅读(160) / 评论(0) 分类 电信英语

Codec Codec is a contraction of coder and decoder; a device that encodes analog signals into digital signals, for transmission through a network in digital format, and decodes received digital signals

发表于:2019-01-03 / 阅读(149) / 评论(0) 分类 电信英语

SAFENET survivable adaptable fiber-optic embedded network Satellite Communications Satellite communications entails microwave radio, line-of-sight propagation from a transmitting earth terminal (i.e.,

发表于:2019-01-03 / 阅读(123) / 评论(0) 分类 电信英语

OAM operation administration maintenance OCC other common carriers Ohms Restriction Ohms Restriction is the same as Ohms resistance. Ohms are measures of resistance. A resistance of one Ohm allows one

发表于:2019-01-03 / 阅读(148) / 评论(0) 分类 电信英语

P-MAC packet media access controller PAD packet assembler-disassembler PCB printed circuit board PDS premises distribution system Personal Communications Personal communications provides at least one

发表于:2019-01-03 / 阅读(141) / 评论(0) 分类 电信英语

补充: E-1 - The European equivalent of a T-1. E911 Taxes/Surcharges - This tax is set and imposed by local governments to help pay for the cost of an emergency response communications system that

发表于:2019-01-03 / 阅读(137) / 评论(0) 分类 电信英语

中文 英文 缩写 DSL传话音 Voice over DSL VoDSL D通道链路接入规程 Link Access Procedure for D channel LAPD D型子凹接头 female D-subconnector E/M 信令方式 Ear and Mouth signalin

发表于:2019-01-08 / 阅读(236) / 评论(0) 分类 电信英语

中文 英文 缩写 IP 电话 IP telephony IP 组播技术 IP multicast technology IP策略语句 IP-policy statement IP地址 IP address IP伪装 IP masquerading ISDN 用户协议 ISDN User Protocol

发表于:2019-01-08 / 阅读(190) / 评论(0) 分类 电信英语

FAITH LAPIDUS: This is the VOA Special English program SCIENCE IN THE NEWS. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell about physical exercise. We will tell why exercise is important, and some of the popular ways to get in

发表于:2019-01-11 / 阅读(137) / 评论(0) 分类 2010年VOA慢速英语(六)月

Todd: So, Monica, you are actually a trained physical education teacher Monica: Yes, that's right. Todd: So, we often hear about how kids today are not fit, and they don't exercise enough. Do you think that's true? Monica: I think it is true, yes. I

发表于:2019-01-20 / 阅读(180) / 评论(0) 分类 原版英语对话1000个

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(171) / 评论(0) 分类 纯正英语一分钟

The same technology used to make prosthetic limbs is now being used to clone some of the world's earliest manuscripts from Mesopotamia, an area near modern-day Iraq. When the US invaded Iraq in 2003, thousands of artifacts were stolen from museums in

发表于:2019-01-22 / 阅读(126) / 评论(0) 分类 自然百科2009年

Profanity Bleeps Physical Pain Holy @$#%! According to neuroscientists from Britains Keele University, dropping the f-bomb can actually relieve physical pain. In the upcoming August 5th issue of the journal NeuroReport, the researchers say swearing

发表于:2019-01-30 / 阅读(174) / 评论(0) 分类 60秒科学

A: Good morning, how are you doing today? B: I have been feeling pretty good, Dr. Smith. A: So, I can see by your chart that you are here for your annual physical. B: Yes, I am playing on the tennis team this year, and they are requiring me to get a

发表于:2019-02-27 / 阅读(234) / 评论(0) 分类 健康-Health
学英语单词
acid-citrate-dextrose(solution)
alga glomerules
Amontada
anti-frosting
apolytikion
be at the pains
before someone's eyes
bilestones
biscuitroot
bitten colony
blepharitic
C.I. natural Red 19
canonical extension
Cassel's operation
cavity friction
Chelyabinskaya
chillest
conversation mode
corporealness
cup crystal
demand satisfaction
demon dance (paraguay)
detonator
distribution copy
driving off tail rod
ehrenhalt
enterovirus swine vesicular disease virus
equiscalar line
fiddle with
financial standing
Fontechevade man
footings
for the purpose at hand
funguria
garden-varieties
gathering industries
geotag
Gongo
hahahah
higher-ends
hwaenggyon-do (hoenggyon-do)
Hynico
imidodiphosphoric acid
interrupt count pulse
isonitrile iron complex
kaneo
kerasite
keyboard equivalent
luff of the bows
man-made interference
medicinal properties
monosultap
Moschcowitz's sign
multi-wavelength
neocollonia pilula
Nierembergia frutescens
node point method
nongray media
of'en
overprediction
oxygen to carbon atomic ratio
Peace Corpsman
per square inch
periodic swinging
phoenicein
phosphinothioyl
Phosphon
photograph size
photosynthetics
pitch, lead
posterolateral sulcus
predefined message
pro-carcinogen
raworth
realisability
reproductive index
retreatment cell
Rhopheocytotic
rod stuffing box
roet
San Juan Bautista Tuxtepec
signed character
sinus of testis
slip rings
Smirnykhovskiy Rayon
sodium cellulose xanthate
spectroheliographs
strio-
Taeniopteris
tandem-paced
terahedral tool maker's straight edge
thermionic voltmeter
tin mine
trachytics
traditio longa manu
transactivities
urali
v-cams
valve plug
Van Der Waals attraction
waggonwrights
wrigglier