常温常压浸出

Without air, there would be no fire. There would be no cars or trucks, since motors need air in order to work. Without air, there would be no wind or clouds. There would be no weather, as we know it.(

发表于:2018-12-01 / 阅读(251) / 评论(0) 分类 自考英语(一)78讲

It's a common enough sound in summer, after the wind finally picks up on a hot and humid afternoon, as the rain starts spattering down in big, fat drops--you're in for a full-blown thunderstorm. It's much less common in winter, even during a snow sto

发表于:2018-12-03 / 阅读(102) / 评论(0) 分类 英语时差8,16

This is one of the reasons why Canada, 这就是为何加拿大 originally a climate change hero -- 它原本是环保英雄- we were one of the first signatories of the Kyoto Accord. 我们是第一批签署京都议定书的国家之一 Now we're

发表于:2018-12-08 / 阅读(127) / 评论(0) 分类 TED演讲娱乐篇

Over centuries, the Irish built a rich heritage of castles and monuments, using an abundance of local stone. Now many of the structures are damaged. The stone is decaying. Thanks in part to Irelands notoriously damp weather, these sites are in danger

发表于:2018-12-26 / 阅读(156) / 评论(0) 分类 自然百科2010年

Broadcast: Apr 02, 2003 The investigation into what caused the break-up of the U.S. space shuttle Columbia supports the theory that a left wing panel broke off during its mission, possibly playing a r

发表于:2019-01-03 / 阅读(186) / 评论(0) 分类 VOA2003(上)-科技先知

Study: African Aluminum Pots Contain Lead 研究表明非洲铝锅含有铅 Locally made aluminum pots in Cameroon, and probably in much of Africa, are likely to be contaminated with lead ( (Courtesy: Occupational Knowledge International). Locally ma

发表于:2019-01-14 / 阅读(122) / 评论(0) 分类 VOA标准英语2014年(八月)

From Haridwar. I followed the Ganges more than 300 miles South east to the major industry city. India's population has more than doubled in the last forty years. It's now more than 1.2 billion people in the country. The impact on the river has been a

发表于:2019-01-16 / 阅读(99) / 评论(0) 分类 自然百科2015年

And we're replacing that with the largest industrial project in the history of the world, 将它转变成史上最大的工业项目, which is producing the most high-carbon greenhouse gas emitting oil in the world. 生产温室气体排放量最大的

发表于:2019-01-18 / 阅读(132) / 评论(0) 分类 TED演讲商业篇

Over centuries, the Irish built a rich heritage of castles and monuments, using an abundance of local stone. Now many of the structures are damaged. The stone is decaying. Thanks in part to Irelands notoriously damp weather, these sites are in danger

发表于:2019-01-22 / 阅读(149) / 评论(0) 分类 自然百科2009年

Parenting on the move is all about sacrifice. And in the forests of northeastern Australia, another great journey spurred by parental dedication is about to begin. On translucent tawny wings, a little red flying fox flaps homeward after a night of in

发表于:2019-01-22 / 阅读(105) / 评论(0) 分类 自然百科2011年

WASHINGTON, June 23 (Xinhua) -- Last month was the hottest May since record keeping began in 1880, the U.S. National Oceanic and Atmospheric Administration (NOAA) said Monday. 图片1 The combined average temperature over global land and ocean surfac

发表于:2019-02-06 / 阅读(139) / 评论(0) 分类 英语新闻

New research suggests agriculture has greatly increased the amount of dust blowing off of West Africa, the world's largest source of atmospheric dust, and may have been one factor driving the decrease in rainfall in the region over the past several c

发表于:2019-02-07 / 阅读(193) / 评论(0) 分类 VOA标准英语2010年(七)月

WASHINGTON Folks sweating out the heat wave battering parts of the country may just have to get used to it. 美联社华盛顿 2010年7月8日消息:那些在肆虐美国部分地区的热浪中汗流浃背的人们也许只好逐渐适应这种天气

发表于:2019-02-07 / 阅读(146) / 评论(0) 分类 阅读空间

A diamond worth ?12,000 was shot into space this morning - and whoever finds it when it lands back on earth gets to keep it. 今天早晨一颗价值1万2千英镑的钻石被送入太空,在它落地后,谁能找到它,它就归谁。 A diamon

发表于:2019-02-08 / 阅读(176) / 评论(0) 分类 英语新闻

A alternate bearing 大小年结果 amendment 调理剂 ample 充足的 anatomical 解剖的 aneuploid 非整倍性(的) anion 阴离子 annual 一年生植物,一季生植物 anther 花粉囊,花药 anthocyanin [植]炭疽病 antibiotic 抗生

发表于:2019-02-09 / 阅读(223) / 评论(0) 分类 英文语法词汇

SCOTT SIMON, HOST: Summer's here, of course, that means fresh peaches. When it comes to peaches, lots of people think of Georgia. But Georgia peaches are having a tough year. The state is missing something like 85 percent of its usual crop. Georgia P

发表于:2019-02-13 / 阅读(122) / 评论(0) 分类 2017年NPR美国国家公共电台7月

Arctic Heat Waves Linked to Snowpocalypse-Like Storms February was unusually hot in the arctic. Thawing out temperature: 35 degrees Fahrenheit.It made big news when it got to 35, I don't know if that's t-shirt weather yet, but 北极在二月时异常炎

发表于:2019-02-14 / 阅读(106) / 评论(0) 分类 2018年科学美国人3月

It's a common enough sound in summer, after the wind finally picks up on a hot and humid afternoon, as the rain starts spattering down in big, fat drops--you're in for a full-blown thunderstorm. It's much less common in winter, even during a snow sto

发表于:2019-02-24 / 阅读(157) / 评论(0) 分类 英语听力文摘 English Digest

Science and technology 科学技术 Measurement 测量 Mass effect 质量效应 A better way to clean the world's one true kilogram 清洁世界上真正一千克的更好方法 IN SEVRES, on the outskirts of Paris, sealed beneath a triplet of bell j

发表于:2019-02-24 / 阅读(185) / 评论(0) 分类 经济学人科技系列

Science and technology. 科技。 Geoengineering. 地理工程学。 Implicit promises. 包含着承诺。 A geoengineering experiment has come unstuck. But there will be more. 地理工程试验取得突破。可期待更多。 FOR the past few year

发表于:2019-02-26 / 阅读(183) / 评论(0) 分类 经济学人综合
学英语单词
239Pu
a. gastroepiploica dextra
acceptability of risk
ad val.
additive colour
adsorbed tracer
agitator joint shaft
allantoicases
allowable punching shear
asthenopia
Aulanys
autocat
bomu (mbomou)
bridge control request push button
broadviews
Brond.
calcium hydrogen carbonate
cathode transformator
central office cable
Chaves County
Chlorthiazide
cisgene
continuously stirred tank reactor
contract extension
cost table
creaming quality
crystal gain
cytisus multifloruss
delay output equip
drink shop
dry month
Dzhagaryn
economic news
effective angle of obliquity
empirical studies
enwombing
equal interval light
exhaust yourself
exhausted resin
fauch
fishery protection cruiser
fixed yoke
flesh sth out
foreign colour
genus acrocliniums
geostrophic transport
Gerecse
gingival shrinkage
grease-making
hevesies
jeepneys
kalumpit
kaohsiung
Kapa'au
kolb
Kotel'nyy, Ostrov
louises
make no doubt
malleableness
management accounting problem
market researcher
Merthiolate
Mesellemiya
metallgesellschafts
microthrmometer
moving blade shuttle
multi-purpose clearing solution
non-coagulant
noneism
nonscholastic
nonwildlife
outer coarse fiber
partial read pulse
penicillium miczynskii
plantation white sugar
precurosor
price index number of agricultural product purchase
proeve
proteogenic
pulsed bending magnet
radioluminescent phosphor
reconfiguration console
reinfecta
row format
rowlock cheek
Sarcosperma laurinum
side-cutter gauging
st paul's cathedral
standard sum term
structured protection
subestrus
suborder megalopteras
surface active substance
Susobana-gawa
TDANA
the-clap
thiozine
try an experiment in
ultrashort-pulse
valued policies
water in which rice has been washed
wellfields