辐射对流热损失

45.The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Suns very center. It is here that is to be found the source of the energy that the Sun constantly pours out i

发表于:2018-11-28 / 阅读(413) / 评论(0) 分类 新概念优美背诵短文50篇

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(154) / 评论(0) 分类 英语小短文

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(242) / 评论(0) 分类 新东方背诵文选

Scientists are putting a modern spin on a cancer treatment that goes back to antiquity. It's heat therapy, which is getting a new look with the help of microscopic particles of gold. Cancer treatments usually involve powerful drugs or radiation. But

发表于:2018-12-16 / 阅读(137) / 评论(0) 分类 VOA标准英语2010年(十)月

Scientists are putting a modern spin on a cancer treatment that goes back to antiquity. It's heat therapy, which is getting a new look with the help of microscopic particles of gold. 科学家们正在利用一种古代技术来治疗癌症。在纳米

发表于:2018-12-19 / 阅读(117) / 评论(0) 分类 VOA双语新闻 2010年11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(137) / 评论(0) 分类 Scientific American(十)月

嘉宾:Debbie Mason 话题:英国社会观察---女性创业者的酸甜苦辣Businesswomen 单词拼写: 1、Ensued:followed 2、Entrepreneurs:a pioneer who starts something, in particular a business 3、Condemnation:stronger criticism 4、

发表于:2018-12-27 / 阅读(118) / 评论(0) 分类 聆听悦耳英音

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-30 / 阅读(125) / 评论(0) 分类 考研背诵50篇

A Cool Sunburn A listener from Ontario, California wrote to A Moment of Science with a question her sons had asked her. The boys wondered why is it that when you get sunburned you often feel chilled. It really does seem like a contradiction: youve be

发表于:2018-12-31 / 阅读(109) / 评论(0) 分类 英语听力文摘 English Digest

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(123) / 评论(0) 分类 2017年VOA慢速英语(四)月

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(216) / 评论(0) 分类 英语小短文

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(242) / 评论(0) 分类 2010年VOA慢速英语(七)月

听歌学英语:Aren't You Glad(陈奕迅) 《Aren't You Glad》是陈奕迅出道十一年来唯一的一首英文歌曲,由英国人Russell Harris作曲、填词,讲述了一个早期生活潦倒的青年人,遭到追求物质生活的女友的

发表于:2019-02-03 / 阅读(137) / 评论(0) 分类 听歌学英语

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(293) / 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(153) / 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(137) / 评论(0) 分类 英语新闻

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

The hour hand on a clock moves about ten thousand times faster than the flowing rocks of the mantle. 钟面上时针的移动速度,比地幔岩石的流动速度,要快大约1万倍。 The movements occur not just laterally as the Earth's plates

发表于:2019-02-25 / 阅读(280) / 评论(0) 分类 万物简史

The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-02-25 / 阅读(134) / 评论(0) 分类 双语有声阅读
学英语单词
-ison
a sea of flames
acinoscope
Albendin
all-personnel labo(u)r productivity
anneal(ing)
annular electrode
Arantius canal
Asterophycus
automatic squeezing machine
babyminders
bacterial protein
Barrero
caliber gage
call around
chick flickish
coil sterilizer
cold-stretched steel bar
conjugate convex cone
corinthian orders
cotten
cross re-cessed pan head thread cutting screw
Dalrymple, Mt.
demand carried forward
dialectical logic
dihydroxy anthraquinone
Dwight Filley Davis
filigreework
fixed resistance unit
forward robot problem solving system
germ-free isolator
globular pearlite
grass basketry
Gulfinishing
haaf
harmonically
heavy-set
helium dating
high water-level alarm
high-heel shoe
hit probability
IANAMD
Institutes of the Christian Religion
insulation thermal life
isomolar
judg(e)ment of Solomon
litmus
make its mark on
Manāqīr
mechanics of biological solids
Meppel
mercantile plane
merging of events
microfilm leader
milling releasing stuck
molecular replacement technique
mono-pitched roof
Mulug
news broadcast
Niobougou
nittings
nodal seal resonator
nortes
North Powder
Palota
parasitic suppressor
penerial
peridine
phytogeography (plant geography)
plastic product
pool of international
pristipomoides zonatus
Qulay'āt
radio navigation set
radioisotope-powered boiler
react with
recession time
redoute
retreating blade stall
riddile
S.S.C.
Shiwa Ngandu
simple periodic function
simplification of expression
single-instruction stream single-data stream
smake
sport philosophy
STABEX fund
sub bottom reflection
superimposed record
tapes
taut airship
teaspoonfuls
temporary spring
thorium fuel
tietjen
transmitter logic
trifling
tungsten coil furnace
two-position temperature controller
Urukthapel
zinc pentamethylene dithiocarbamate