[电讯] 天线有效噪声温度

12. Stop the Noise Mr. Chen is talking to his neighbor Mrs. Wang. C: May I have a word with you? W: Sure. What's the problem? C: It's about your son. I'm tired of his making so much noise at all hours

发表于:2018-11-27 / 阅读(468) / 评论(0) 分类 赖世雄中级美国英语

There are six characteristics of speech, all of which are vital to speak effectively. In this section we'll look at each of them separately. These speech characteristics are basically important to you

发表于:2018-11-28 / 阅读(173) / 评论(0) 分类 疯狂英语2001年

BY STEPHEN R .COVEEY The first habit is 1)proactivity. Be proactive. The word proactivity is fairly common in management literature, but you won't find it in the dictionary. It means more than merely

发表于:2018-11-28 / 阅读(221) / 评论(0) 分类 疯狂英语2001年

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(262) / 评论(0) 分类 新东方背诵文选

AS IT IS 2014-05-06 Looking for Vaccines Outside the Cold Chain Hello, and welcome back. I'm Jim Tedder in Washington. Today we will help you improve your American English while giving you some new information about medicines. This is the kind of thi

发表于:2018-12-16 / 阅读(105) / 评论(0) 分类 2014年VOA慢速英语(五)月

By Melinda Smith Washington 31 August 2007 Centuries ago doctors used hypnosis to help relieve the excruciating pain of surgery. It then fell out of favor with the introduction of anesthesia. Now as VOA's Melinda Smith reports, new studies show a hos

发表于:2018-12-16 / 阅读(155) / 评论(0) 分类 2007年VOA标准英语(八月)

Researchers find circadian clock in Monarch's antenna plays a major role in navigation Shelley Schlender | Michoacn, Mexico 22 March 2010 Scientists believe antennas are critical to the navigation of the Monarch butterfly. Related Links Monarch Watch

发表于:2018-12-16 / 阅读(128) / 评论(0) 分类 VOA标准英语2010年(三月)

Lesson 156 Part Ⅰ Warming-up Exercises Spot Dictation: The Temperature Check Last winter we had kind of a, uh, cold winter and I was home in bed _____ one night and listening _____ my radio. And, uh

发表于:2018-12-27 / 阅读(111) / 评论(0) 分类 英语听力入门 (全四册)

There is of course a great deal we don't know, and much of what we think we know we haven't known, or thought we've known, for long. Even the notion of the Big Bang is quite a recent one. 当然,有大量的事情我们不知道,还有大量的事情

发表于:2019-01-01 / 阅读(96) / 评论(0) 分类 万物简史

Brian didnt have cable TV. He didnt have satellite TV. He had an antenna for his TV. He had an indoor antenna. But it was an old antenna. The reception was bad. He needed to buy a new antenna. He went to Best Buy. The antennas were in boxes. He looke

发表于:2019-01-02 / 阅读(157) / 评论(0) 分类 简单慢速英语阅读

Brian didn't have cable TV. He didn't have satellite TV. He had an antenna for his TV. He had an indoor antenna. But it was an old antenna. The reception was bad. He needed to buy a new antenna. He went to Best Buy. The antennas were in boxes. He loo

发表于:2019-01-02 / 阅读(137) / 评论(0) 分类 原版英语小短文

Ground - Connecting the Earth to electrical equipment with a conductor. This is done so current overloads (perhaps due to a lightning strike) can be safely diverted to the Earth. Ground Fault Circuit

发表于:2019-01-03 / 阅读(120) / 评论(0) 分类 电信英语

It was the first day of school. As the principal made his rounds, he heard a terriblecommotion coming from one of the classrooms. He rushed in and spotted one boy, taller than the others, who seemed to be making the most noise. He seized the lad, dra

发表于:2019-01-05 / 阅读(140) / 评论(0) 分类 趣味英语

英文歌词: It's easy to feel like You're all alone To feel like nobody knows The great that you are The good that's inside you Is trying so hard to break through[00:29.91]Maybe it's your time to lift off and fly You won't know if you never try I will

发表于:2019-01-05 / 阅读(194) / 评论(0) 分类 音乐咖啡厅

By Jessica Berman Washington 14 May 2008 Researchers have determined that commonly prescribed triple-drug combination therapies that use old antiviral drugs are the most effective for suppressing the deadly virus that causes AIDS. The findings have m

发表于:2019-01-09 / 阅读(136) / 评论(0) 分类 VOA标准英语2008年(五月)

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(150) / 评论(0) 分类 英语杂谈

GUY RAZ, HOST: I want to ask you about this really famous Talmudic notion - actually, it might be that in the Quran as well - but this idea that, you know, if you save a single life, then you have saved all of humanity. You know that one? PETER SINGE

发表于:2019-01-17 / 阅读(106) / 评论(0) 分类 2017年NPR美国国家公共电台5月

(Probably Not a) Giant Alien Antenna强大的外星人光束 The Earth is studded with telescopes, listening for electromagnetic radiation from the great beyond. And a decade ago, astronomers stumbled upon a mysterious signal: a powerful pulse of rad

发表于:2019-01-20 / 阅读(152) / 评论(0) 分类 2017年Scientific American(三)月

The Giants SecretLong ago there was a king who had a very brave son. One day the son told his father, Father, I am going to roam the world in search of adventures.The king did not want to grant his son permission to do so, but the prince insisted so

发表于:2019-02-08 / 阅读(157) / 评论(0) 分类 英美文化

Chances are youve heard or rather, not heard the effects of a noise gate, but unless youre into audio engineering, you probably didnt realize it. Ever been at a concert or listen to a radio broadcast where it sounds great when theres music playing or

发表于:2019-02-18 / 阅读(193) / 评论(0) 分类 阅读空间
学英语单词
a slip of the pen
absorption X-ray spectrum
acoustic resonator
alexandroff
all-ages
analong computer
antimony compounds
assies
backlash current
Bacsborsod
bagbiting
beweeps
bianculli
body-weights
calmative
cam gecidi
carbon black oil
caribbean blue
cavitation conditions
charge holder
closed nodal region
comburment
concrete mix
cracker box
crestedness
disimprison
elm bark beetle
entrenadores
environmental disruption
ethyl sulfuric acia
exposedly
face lifting
FAMC
Fibrinogen-Fibrin
Gaines County
hammer up
hereditarily countable
high-plane of nutrition
Hiroshima
HSP68
Iki-suidō
imperial pint
Indigofera fortunei
initials
itys
L-OPS
macrosclere
malacozoologist
martensite plate
Melville, Herman
mimophyre
monitoring of process variables
multiple orifice nozzle
multipulse jammer
nanofarad
Nematoda
nevertirees
nonweekly
nut clam
octu-
Omaňas, R.
palaeoniscid
parallel escalators
Pasania dodonaeifolia
periphallus
phenolphthalins
podsolic soils
poem-engraved stone slab
poetinatine
polka-dots
porosimeter
Prague maneuver
prescribed text
prest-money
quasiparticle tunnelling
read through module
real dead time
rear mount method
referments
refundable mortgage bond
regiones interscapularis
reticulate erythema
reversed spin
rex-pats
semiotic function
serving position
shedfuls
spooktacular
stand out for
steering and brake linkage
Stehle's methods
still-air range
superchopper
tail trolley
the invisible hand
trabecular hepatocellular carcinoma
tying sporelings to rocks
volcanic emanations
wellplanned
Wheatland Res.
zetta-gray