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(49) / 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(71) / 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(58) / 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(64) / 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(59) / 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(74) / 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(82) / 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(88) / 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(158) / 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(74) / 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(94) / 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(66) / 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(66) / 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(74) / 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(67) / 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(232) / 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(83) / 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(85) / 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(55) / 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(84) / 评论(0) 分类 英语新闻
学英语单词
after-treatment with peroxide
Alangouassou
algonquin
anatran
Artomycin
asymmetric refractor
autotype
basikuloside
be brilliant at
be heedful of
bearing noise
biotribology
Bradleyan
Bupleurum yunnanense
catoctin mountain
chocolates
claim jumper
coil curl
cold water pipe
combined stop
come with
commutating electromotive force
consuls-general
cushion course
degree-hour
Deltatheridia
Desmarres' law
digital triradius
disapprovers
dock authority
duocone
egalites
epidemic streptococcus sore-throat
false fusion
forcat
foreclosure
foretouch
free union
frequency-division modulation
from the fact that
geographics
hatch sealing
heliopora coerulea
hellevik
Henrique de Carvalho
holotrichia yui
hughendens
isocycle nucleus
Jacob's drill chuck
kerosine shale
labyrinth weir
lower fiber
magnetic V block V
Malayali
manufacturing dedicated computer
Manzonians
matterwave
meg ryan
mountain tundra belt
muckamucks
mulcts
MWYr
Nabothian cysts
niter group
non-loss air condenser
operation commutator
optimum rate
pagurian
pitch of wire cord
polarized electrolytic capacitor
power of regeneration
pterosin
quartzfree porphyry
razumikhin
realization and liquidation profit and loss
remoteoperated
renaturalization
revalue (revaluate)
rights-to-left
rough lapping
sailor's quarters
SARSAT
schkuhrin
shoot a basket
Smilax bockii
sterling constant
stibonium
submerged coast (drowned coast)
sungo
surili
tandem mechanical seal
tape test of Wolff
tee-tee
the same day
three-quarter sibling
tidal energy resource
Tonkinskiy Rayon
travel-sicknesses
underdown
unfragrant
ureches
veered off