归一化辐射场

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(120) / 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(153) / 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(126) / 评论(0) 分类 2011年VOA慢速英语(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(155) / 评论(0) 分类 Scientific American(十)月

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(137) / 评论(0) 分类 2017年VOA慢速英语(四)月

Vitamin D is an essential nutrient that we get through exposure to sunlight and through diet. Without enough Vitamin D, we are at risk for rickets, osteoporosis and bone fractures. Now, researchers have found that Vitamin D deficiency is also associa

发表于:2019-01-11 / 阅读(174) / 评论(0) 分类 VOA标准英语2010年(三月)

India's Prime Minister Manmohan Singh says he wants normalized relations with Pakistan, but that Islamabad must stop allowing its territory to be used for terrorist activities against India. Mr. Singh made the statement during an election rally in I

发表于:2019-01-11 / 阅读(164) / 评论(0) 分类 VOA标准英语2008年(十二月)

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(170) / 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(259) / 评论(0) 分类 2010年VOA慢速英语(七)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(151) / 评论(0) 分类 VOA标准英语2012年(三月)

Japan raised the severity of the Fukushima nuclear crisis from four to five on a seven-point scale of international nuclear events. Fears of radiation exposure has caused a run on salt products all across the region, including in China, where shopper

发表于:2019-01-14 / 阅读(180) / 评论(0) 分类 VOA标准英语2011年(三月)

The solar system is a hostile place. Earth is under attack from deadly cosmic radiation. Life here is only possible, because it's protected by the magnetosphere, an invisible force field that cocoons the planet. But new evidence reveals that this vit

发表于:2019-01-22 / 阅读(137) / 评论(0) 分类 自然百科2011年

As the reversal approaches, the decay of our magnetic field will continue and cosmic radiation will get increasingly close to the Earth's surface. As the reversal approaches, the decay of our magnetic field will continue and cosmic radiation will get

发表于:2019-01-22 / 阅读(142) / 评论(0) 分类 自然百科2011年

In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati

发表于:2019-01-22 / 阅读(165) / 评论(0) 分类 自然百科2011年

Blockson's computer model reveals that at the South Atlantic Anomaly, the magnetic field isn't just weaker than anywhere else on the planet. It's actually reversed polarity. There is a patch on the core in the South Atlantic where things are not poin

发表于:2019-01-22 / 阅读(149) / 评论(0) 分类 自然百科2011年

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(306) / 评论(0) 分类 英语新闻

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(168) / 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(148) / 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(134) / 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(165) / 评论(0) 分类 英语新闻
学英语单词
abridgements
anisomery
APV-system
ascendings
Austramycin
ayu
be out of breath
be-fore
belived
benedict xivs
beselve
bioshock
bipolar format
Brito Godins
buffer block deletion
catherina
chamber concer
chromatographic separation
collar blight
colour quartzite
contravariance
cordierite hydrous
cryptographic key data set
diamond pyramid
divided simple laccolith
dorms
double connection test
dual pressure preformer
dyester
Eisenkobaltkies
enshielding
evu
flagellator
free core pool
gamesa
graded index fiber dispersion limit
hell-bent-for-leather
Heydon
high-polished
hosta cocrulea tratt
hsin
hydrobilobol
impudences
india rubbers
international joint venture mode
intrauterine contraceptive device
inward clearing bill
ipso jure termination of a contract
isotopic abundance measurement
Kenam, Tg.
magnolin
malleabler
manganese (mn)
matrix of alternating form
Minelcin
muzenda
national council of dance teacher organizations
negative pressure burning
nonspecifically
operations administration and management
overfawn
oxidation-reduction catalyst
paravareiola
percis matsuii
polymer complex
potpie
prediction optimization
pseudopetal
refrigerator space
rim bearing swing bridge
ring-a-ring o' roses
roast beefs
rosy-lipped batfish
Routing Table Maintenance Protocol
SAN - Storage Area Network
scarphs
semi-metallic luster
seven dances of life
south yorkshires
speech impediment
spent fuel canal
stream breaker
Sudost'
sum of squares for random factors
sumrall
superlations
sympatol
syphilitic therapeutics
the act of union
threephase half wave rectifier circuit
throw someone off the scent
tin tabernacle
U.S.price
ultra-red radiation
undressed flax
uprighten
Vena interventricularis anterior
very high rates of pressing
whammy bar
worriable
xylocarpus
yojana