天线辐射效率

This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Japan's nuclear crisis may mean greater demand for imported food and less competition from Japanese products on world markets. But it also means that

发表于:2018-12-07 / 阅读(108) / 评论(0) 分类 2011年VOA慢速英语(三)月

Doctors use X-rays to view internal organs, obtain clear images of possible disease and to treat cancer. For years radiation has been used to save lives, but there is growing concern that some patients are getting more than they ask for when they und

发表于:2018-12-08 / 阅读(140) / 评论(0) 分类 VOA标准英语2010年(一月)

This is the VOA Special English Health Report. The crisis at the damaged Fukushima Dai-Ichi Nuclear Power Station in northern Japan has raised worries about radiation risks. We spoke Tuesday with Jonathan Links, an expert in radiation health sciences

发表于:2018-12-16 / 阅读(116) / 评论(0) 分类 2011年VOA慢速英语(三)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(149) / 评论(0) 分类 VOA标准英语2010年(三月)

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Animals rely on all sorts of cues to find their next meal. Monkeys and birds are attracted to the colors of ripe fruits and berries. And snakes find thei

发表于:2018-12-24 / 阅读(138) / 评论(0) 分类 Scientific American(十)月

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(178) / 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(159) / 评论(0) 分类 原版英语小短文

Human exploration of Mars is now an official goal of the National Aeronautics and Space Administration (NASA). Last month, U.S. President Donald Trump signed a bill to increase NASAs budget. The law sets spending at $19.5 billion for the 12-month per

发表于:2019-01-02 / 阅读(126) / 评论(0) 分类 2017年VOA慢速英语(四)月

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(139) / 评论(0) 分类 电信英语

U.S. health experts monitoring Japan's nuclear crisis are seeking to explain health risks from radiation(放射) exposure, while cautioning that radiation levels measured this week at the Fukushima-Daiichi power plant in northern Japan have not y

发表于:2019-01-11 / 阅读(160) / 评论(0) 分类 英语新闻

DOUG JOHNSON: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Doug Johnson. FAITH LAPIDUS: And I'm Faith Lapidus. Today, we will tell about skin cancer. (MUSIC) DOUG JOHNSON: Skin cancer is one of the most common forms of cancer. It is also

发表于:2019-01-11 / 阅读(243) / 评论(0) 分类 2010年VOA慢速英语(七)月

Agriculture Report - Improving 'Feed Efficiency' in Cattle 农业报道 - 提高牛的饲养效率 From VOA Learning English, this is the Agriculture Report in Special English. 这里是美国之音慢速英语农业报道。 Animal feed is the bigge

发表于:2019-01-12 / 阅读(160) / 评论(0) 分类 2012年VOA慢速英语(十一)月

Japanese Town Split by Radiation Evacuation Zone It is an extraordinary meeting of the Kawauchi village assembly. Because of severe damage to the village's municipal hall from the earthquake, the public gathering has been convened at a community cent

发表于:2019-01-13 / 阅读(132) / 评论(0) 分类 VOA标准英语2012年(三月)

(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(175) / 评论(0) 分类 2017年Scientific American(三)月

The World Health Organization (WHO) warns against the indiscriminate(任意的无差别的) use of potassium iodide as a precaution against nuclear radiation. WHO is issuing this advisory following reports of people in Japan and elsewhere who are usi

发表于:2019-02-06 / 阅读(294) / 评论(0) 分类 英语新闻

By Mike O'Sullivan Los Angeles 16 November 2007 Auto makers who are showcasing their latest models at the Los Angeles auto show are expanding product lines in the hope of staying competitive in a changing market. Mike O'Sullivan reports, carmakers fr

发表于:2019-02-06 / 阅读(182) / 评论(0) 分类 VOA常速英语2007年(十一月)

A key Japanese adviser on radiation(放射 ) leaks at the country's disabled Fukushima nuclear power facility has quit in protest over the government's handling of the disaster. The adviser, Toshiso Kosako, a radiation safety expert at the Univer

发表于:2019-02-06 / 阅读(154) / 评论(0) 分类 英语新闻

NEW DELHI, March 16 (Xinhua) -- The Indian government has ordered food originating from(发源于) Japan to be tested for radiation in the wake of explosions at a Japanese nuclear plant following a devastating earthquake-tsunami last Friday, repo

发表于:2019-02-07 / 阅读(139) / 评论(0) 分类 英语新闻

Public opinion polls suggest most Americans favor full body scanners as a way to protect against terror attacks on commercial airliners. The benefits of scanners are being debated in a number of countries. Some groups have raised privacy issues. But

发表于:2019-02-07 / 阅读(124) / 评论(0) 分类 VOA标准英语2010年(一月)

WASHINGTON, March 30 (Xinhua) -- A trace amount of radioactive(辐射性的) iodine(碘) has been found in a sample of milk from the west state of Washington, the U.S. Environmental Protection Agency and the Food and Drug Administration (FDA) sai

发表于:2019-02-11 / 阅读(149) / 评论(0) 分类 英语新闻
学英语单词
absorption reaction
active return loss
adenophora
adt (abbreviation)
aircraft nuclear power facility
alterntion
Annual Finance Act
apostrophised
approach berth
Arn.
ash texture
atfore
atheromatosis cutis
athwarship thruster
atomic wedgies
backroad
Balo
Bannerman, Mt.
Bayswater Captain
be going on
being in love
bluecurls
casecarbonizing
ciche-pea
clintons
clitoral hypertrophy
clowe
constant-current street-lighting system
creeping pressure
crossing over value
crystal body
cultural study perspective
d/dt limiter
decotylated embryo
electrical-type detector
enterocrinin
ethenyl
every man's meat
excision of intracranial meningioma
farrago
find not guilty
Fishing Harbour Waters
fuel ash deposition
get too big for one's boots
graphic(al)
halided
hard drawn wire
Haute mer
heavy-ion collision
high molecular weight
hypometamorphic
inspite
intralesionally
invite applications for a job
ixa inermis
Koran-aloner
Lacave
lamp cextractor
Leoncavallo, Ruggiero
long train
Lālgudi
Maithon Res.
measurement window
melting shop teeming bay
merchant steamer
metacrystalline rock
mince one's words
minimal distance docoding
monocyclic stele
MOPTARS
multi wash
neodymium-doped calcium tungstate laser
Nernst Ettinghausen effect
newspaper distribution system
Pariaman
planar element
printer plottci
pro-proctor
pyramidic
raining buckets
Reichenspitze
reliction
reserved seating
saimins
seigneurial
self-bailing cockpit
set up business
social solidarist school of law
spermatically
spherical silver amalgam
stream terrace
strockmire
surface gloss
tagets
tetrablemmids
thematised
tuwaif (pakistan)
twill power loom
uk head office
usda-inspected
vorticose veins