增益同噪声温度比

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(473) / 评论(0) 分类 赖世雄中级美国英语

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(265) / 评论(0) 分类 新东方背诵文选

Rachel: What does John do for a living? Derek : He's a salesman. Rachel: That's a difficult way to make a living. Derek: Well, remember: No pain, no gain. 一分耕耘,一分收获 雷切尔:约翰是靠什么谋生的? 德里克:他是个推销员

发表于:2018-12-08 / 阅读(392) / 评论(0) 分类 赖世雄初级美国英语

作文和听力,阅读一样,可以早做准备。现在流行的复习方法是从下半年复习,甚至是考试前3个月才开始复习。复习的教材无一例外的是考试虫系列的万能作文:背一二十篇作文模式,背一二

发表于:2018-12-12 / 阅读(94) / 评论(0) 分类 英语学习方法

Language Points 1.Your coffee comes exactly as you like it, with the precisely right ratio of cream to sugar 2.You make all the stop lights when youre in a hurry 3.You come back from the bathroom at a restaurant and your delicious meal is already at

发表于:2018-12-26 / 阅读(103) / 评论(0) 分类 爆笑英语口语

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(113) / 评论(0) 分类 英语听力入门 (全四册)

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(231) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt

发表于:2019-01-02 / 阅读(267) / 评论(0) 分类 数学英语

City Code - Some foreign countries require you to dial a city code before the phone number you are trying to reach. Clamp - A circuit that removes the energy dispersal signal component from the video

发表于:2019-01-03 / 阅读(108) / 评论(0) 分类 电信英语

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(141) / 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(196) / 评论(0) 分类 音乐咖啡厅

After nearly twenty years of homeownership, Ive spent the past ten months renting an apartment. I like it. And I dont. There are pros and cons to renting a place, just as there are pros and cons to owning a home. For me, one of the biggest cons is th

发表于:2019-01-08 / 阅读(138) / 评论(0) 分类 英语小短文

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

BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up

发表于:2019-02-04 / 阅读(165) / 评论(0) 分类 英语新闻

The People's Bank of China says the economy is still facing downward pressure. Meanwhile, the global financial market has shown major fluctuations recently. Therefore, the central bank has concluded that it's necessary to apply flexible monetary poli

发表于:2019-02-05 / 阅读(130) / 评论(0) 分类 英语新闻

今天我们要学的词是gain ground。 To gain ground意思是有进展,也可以指越来越被大家所接受。Mild weather helped firefighters gain ground on a fire in Yosemite National Park, 温和的天气让消防队员征服优胜美地国

发表于:2019-02-07 / 阅读(113) / 评论(0) 分类 英语每日一词

China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem

发表于:2019-02-14 / 阅读(153) / 评论(0) 分类 英闻天下

Rising property prices in China's major cities have scared off many young people and the situation is only becoming worse as rent in these cities is becoming unaffordable. 中国大城市房价的上涨已经吓跑了许多年轻人,而当这些城市

发表于:2019-02-15 / 阅读(102) / 评论(0) 分类 英语新闻

世界本没有长难句,修饰成分多了,便有了长难句。 阅读速度大部分来于短时间内理解长难句的能力。 大家在看长难句的时候,多思考,一个句子为什么这么长,常见的修饰成分到底有哪些?

发表于:2019-02-18 / 阅读(141) / 评论(0) 分类 托福英语
学英语单词
a door plate
acanthopanacis senticosi radix et caulis
account book paper
activated carburizing
aluminium-cell lightning arrester
Aminsoyn-PF
Andres Segovia
ansiform lobule
atc (automatic tool change)
augmented matrices
backwards roll
bakkar
bank-stock
be vested in
bursarius
calines
call progress message
censoriousnesses
chain gear for drum shaft
chrome-plated iron tube
clados porium compactum
conjoint marital therapy
cow oak
Dao, Nusa
deceivable
deep tanks
dispersion strengthening composites
Dulong-Petit law
Dumanlι
duplex bearing
Dutch loaf
Elamite language
electrofining process
FFMC
flat-oval tube
flow mark
frame switch
french-door
function alloy
gabon
GMR head
goalhanger
Gould City
grubbily
handle object
house service meter
impossible figure
light green glass
limonia (dicranomyia) puncticosta
lipo-angioma
logarithmic survivor curve
loose oxidation product
lurvs
male-pattern alopecia
Marengo County
millburn
monoic
motor-control
nantucketers
neurospora
nevermore
parchable
parizeaux
partnership instrument
phylogenesis classification
Piispa
principal plane of crystal
pseudocercospora kaki
pull of gravity
reaction channel
response format
safe-sex
sanitary plumbing
scymitar-shaped
Sebauh
self ventilated motor
senior wrangler
shism
short-livedness
smoke bombs
snowtime
specified time
sprocket with hub
st-506 disk interface
Steinhöring
storage tray
sudfrica
synthetised
Tarna
tenside
thelo-
time-bearing display
time-inconsistencies
tinygrams
titanoderma pustulatum
trial sheet
unconcordance
unwitten
urban railway
volcano rabbit
walked all over
with ... whole heart