[地物] 地球重型结构力学

By Nico Colombant Dakar 31 July 2006 In West Africa's Sahel region, which has had poor rain over the past few decades, scientists and human rights activists are hard at work trying to combat some of the many negative effects of desertification - the

发表于:2018-12-08 / 阅读(212) / 评论(0) 分类 2006年VOA标准英语(七月)

With a loan from a relative and a recipe he found in the basement at the local public library, Ernest Gallo founded what would become, at one point, the world's largest winery. The legendary wine maker died Tuesday at his home in Modesto, California

发表于:2018-12-19 / 阅读(249) / 评论(0) 分类 2007年NPR美国国家公共电台

JUDY WOODRUFF: Finally tonight: Yesterday was Earth Day, with celebrations around the globe. Hari Sreenivasan talked recently to a geologist who is also the host of a new film. And he's traveled the globe looking for ways human ingenuity has solved t

发表于:2018-12-31 / 阅读(147) / 评论(0) 分类 PBS访谈环境系列

The Sahel is one of driest areas in Africa, but that may change if Earths surface temperatures rise more than two degrees Celsius. 萨赫勒地区是非洲最干旱的地区之一,但是如果地球表面温度再升高两摄氏度,那么这一切可

发表于:2019-01-02 / 阅读(150) / 评论(0) 分类 2017年VOA慢速英语(七)月

PlummetingUSSatellitetoHitEarthFriday NASA launched the Upper Atmosphere Research Satellite (UARS) 20 years ago this month. And now that bus-sized satellite is plunging toward Earth. Mark Matney, an orbital debris scientist at NASA's Johnson Space Ce

发表于:2019-01-13 / 阅读(146) / 评论(0) 分类 VOA标准英语2011年(九月)

Space Shuttle's End Prompts Doubts About NASA's Future One day after the landing of Atlantis ended the 30-year space shuttle program, the company that ran shuttle operations for the U.S. space agency NASA is dismissing 1,510 employees. The end of the

发表于:2019-01-13 / 阅读(141) / 评论(0) 分类 VOA标准英语2011年(七月)

As the post-Hosni Mubarak phase begins in Egypt, analysts say the military, which is now in power, is facing off against young Egyptians who have made clear they aspire to democracy. Egypt's military leader, the Soviet-trained defense minister, Moham

发表于:2019-01-14 / 阅读(168) / 评论(0) 分类 VOA标准英语2011年(二月)

Broadcast: Jan 10, 2003 By George Grow This is the VOA Special English ENVIRONMENT REPORT. American scientists say rising temperatures on Earth's surface are forcing animals and plants to move to cool

发表于:2019-01-20 / 阅读(268) / 评论(0) 分类 VOA2003(上)-社会广角

Earth's Fried Far-Future Postponed A study in the Proceedings of the National Academy of Sciences adds at least a billion years to the already far-future estimate of when the sun will make Earth too hot to handle. Karen Hopkin reports. [The followin

发表于:2019-01-30 / 阅读(179) / 评论(0) 分类 60秒科学

By Phuong Tran Dakar 07 August 2007 For the past six weeks, representatives of Chad's main rebel groups have been in negotiations with Chad government officials to end a conflict that has recently shifted from the northern to the eastern part of the

发表于:2019-02-03 / 阅读(193) / 评论(0) 分类 2007年VOA标准英语(八月)

By Gary Thomas Washington 17 December 2007 In 2007, the long-simmering enmity between the United States and Iran came to a boil as Washington ratcheted up its accusations on Tehran's nuclear weapons ambitions and its backing of insurgents in Iraq. Bu

发表于:2019-02-06 / 阅读(134) / 评论(0) 分类 VOA常速英语2007年(十二月)

BEIJING, March 15 (Xinhua) -- China's restrictions on rare earth exports are justified and are in line with World Trade Organization rules, Shen Danyang, spokesman for the Ministry of Commerce, said Thursday. The policy aims to protect resources and

发表于:2019-02-08 / 阅读(154) / 评论(0) 分类 英语新闻

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发表于:2019-02-19 / 阅读(187) / 评论(0) 分类 加州英语分级G6

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发表于:2019-02-19 / 阅读(181) / 评论(0) 分类 加州英语分级G6

We may be going through a reversal now. 我们现在也许正经历一次逆转。 The Earth's magnetic field has diminished by perhaps as much as 6 percent in the last century alone. 仅仅在过去的一个世纪里,地球的磁场就减弱了大约

发表于:2019-02-25 / 阅读(228) / 评论(0) 分类 万物简史

No one can say what causes the oceans' chemistry to change so dramatically from time to time, but the opening and shutting of ocean ridges would be an obvious possible culprit. 谁也说不清什么原因导致了海洋化学成分不时发生戏剧性

发表于:2019-02-25 / 阅读(270) / 评论(0) 分类 万物简史

31. Although apparently rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact. 31. 骨头看起来是脆硬的,但它也有一定的弹性,使得骨骼

发表于:2019-03-13 / 阅读(370) / 评论(0) 分类 实用英语
学英语单词
abercrombie mt.
after phrase
Aholah
algorithm module
annotativeness
antimony lactate
anwr
application of principles test
arenaball
automatic feed-rate control system
aza-2'-deoxycytidine
Bayou Meto
beaded screen
benweeds
bimastoid
Breitenhof
bridge space
Buggins's turn
calamars
calandria evaporator
campaign coverage
carnegie representation language
carpell
checking information
chilidog
cloath
co-infection
continuously computed release point
corporate trust
cost drivers
cristae tegminis tympani
Cybal
degrading effect
diminishing marginal productivity
dorsakar
duplex gear cutters
emergency control center
field device
general pharmacology
gibbsites
glucosamine
grengesite
grinding wheel dressing
hallucinates
head gap
Horicon National Wildlife Refuge
horizontal photography
hydrocool
impulsor
individual fuel injection pump
intastable
juiceman
keggahs
lap oneself in
larch
Mamanutha Grp.
mannesmanns
marshman
match to
mayfish
mccarville
megafinance
mercarbolide
mixed equilibrium
myriagrammes
new-plaier
north c. (nordkapp)
not-invented-here
ommatius simils
partitionless
pastnesses
phaeovirus
phenyl alkylsulfonate
photo-eyepiece
photofluorographs
pocket tester
post alloy diffusion transistor
quadruple scull
Rabdosia enanderiana
red glassine paper
reef ring
retapamulin
retinectomy
ryzin
salmon p. chases
scheduling mode
Schmidt syndrome
sedman
smylorrhexis
surantler
TAENIOIDIDAE
Taurus the Bull
theory of hierarchies
thermonuclear war
torrential flood drainage works
transmitting current response
true gravity
usucapt
velocity method
watchlisted
whoopla
yu-ming