重力式粗选风力分级机

THE MAKING OF A NATION - July 11, 2002: Post-War Economy / Berlin Airlift By David Jarmul VOICE 1: THE MAKING OF A NATION -- a program in Special English by the Voice of America. (Theme) The surrender

发表于:2018-11-27 / 阅读(303) / 评论(0) 分类 The Making of a Nation

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? You could think of it as the real dancing with the stars. Two white dwarf stars have been found twirling around each other to make a complete orbit in less than every 13

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 Scientific American(七)月

Gravitational Waves Detected, Einstein Is Right 引力波存在证明爱因斯坦是正确的 尽管花费了100年时间,最终科学家还是证明了爱因斯坦的理论是正确的,引力波确实存在 The waves were predicted as part of Ei

发表于:2019-01-12 / 阅读(88) / 评论(0) 分类 2016年VOA慢速英语(二)月

Syrian Forces Turn to Air Power as Insurgency Gains Nearly a quarter of a million Syrians have fled their homes in recent weeks, as government bombs and mortar shells have begun targeting heavily-populated areas. Last week, amateur video on a social

发表于:2019-01-13 / 阅读(121) / 评论(0) 分类 VOA标准英语2012年(九月)

Larry和李华周末在国家公园野营。李华今天要学两个常用语,rough it和creep someone out。 LL: I just love camping, Li Hua. Isn't it great to be roughing it? LH: Roughing it那是什么意思呀? 听起来好像挺恐怖的。

发表于:2019-01-15 / 阅读(106) / 评论(0) 分类 美国之音《流行美语》

In 2016 the Laser Interferometer Gravitational-Wave Observatory, LIGO, made the first accepted detection of gravitational waves. So any time you move a mass it produces a gravitational waveso black holes, like the ones LIGO detected, these are stella

发表于:2019-01-20 / 阅读(118) / 评论(0) 分类 2017年Scientific American(三)月

It had been another hot spring day. By ten oclock in the evening, it had only cooled down to 87 degrees, according to Larry's thermometer in the living room. He rarely looked at his thermometer because he usually didn't care what the exact temperatur

发表于:2019-01-20 / 阅读(112) / 评论(0) 分类 365个英语简短小故事

At Principia's heart were Newton's three laws of motion (which state, very baldly, that a thing moves in the direction in which it is pushed; that it will keep moving in a straight line until some other force acts to slow or deflect it; and that ever

发表于:2019-01-29 / 阅读(109) / 评论(0) 分类 万物简史

Four months after the historic first-ever detection of gravitational waves, scientists said they have directly detected another gravitational wave washing over the Earth. 在引力波历史性的首次检测到四个月之后,科学家们近日表示

发表于:2019-02-02 / 阅读(125) / 评论(0) 分类 英语新闻

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-02 / 阅读(130) / 评论(0) 分类 英语新闻

David Reitze, executive director of the U.S.-based Laser Interferometer Gravitational-Wave Observatory, also known as LIGO, made the announcement in Washington D.C. Ladies and gentlemen, we have detected gravitational waves, we did it! The gravitatio

发表于:2019-02-02 / 阅读(82) / 评论(0) 分类 英语新闻

科学家发现宇宙膨胀的证据 WASHINGTON, March 17 (Xinhua) -- U.S. astronomers announced Monday they have captured the first images of gravitational waves, or ripples in space-time described as the first tremors of the Big Bang in which the u

发表于:2019-02-03 / 阅读(97) / 评论(0) 分类 英语新闻

Something has been happening recently that pleases me a lot. My newly planted roses have been flowering. For some reason I didn't expect them to make such a show this year, with them being new. My entryway project has continued, and I ended up planti

发表于:2019-02-05 / 阅读(82) / 评论(0) 分类 英语博客 A cup of English

They were proposed almost exactly 100 years ago by Albert Einstein based on his theory of general relativity but it was only in February 2016 that scientists proved the existence of gravitational waves. And now China is starting work on the worlds hi

发表于:2019-02-06 / 阅读(116) / 评论(0) 分类 英语新闻

Astrophysics 天体物理 Dust to dust 尘归尘,土归土 A dramatic recent discovery in physics is looking rather dodgy 近期,物理学中的一项戏剧性发现看上出非常模糊 IN MARCH Chao-Lin Kuo, an astrophysicist at Stanford Univer

发表于:2019-02-16 / 阅读(116) / 评论(0) 分类 经济学人科技系列

Air NZ showed what their new planes will look like inside. The CEO of Air NZ said that there have been many improvements for Business class passengers in the past few years but nothing for Economy class. The new planes, the Boeing 777-300 model, will

发表于:2019-02-17 / 阅读(109) / 评论(0) 分类 新西兰英语

Leaders 社论 Cosmology 宇宙学 Man suddenly sees the start of the universe 揭秘宇宙的起源 The quest to understand reality takes a great leap backwards 科学新突破探索宇宙诞生之初的真相 IN THE beginning was the word and the w

发表于:2019-02-17 / 阅读(96) / 评论(0) 分类 经济学人综合

首先我必须要知道,一篇文章中不认识的单词占托福阅读词汇总量的比例只要控制在8%以内,是绝对不会影响到我们对全文任何观点的理解的。基于这一点,我们大家大可不必因为遇到了几个我

发表于:2019-02-17 / 阅读(189) / 评论(0) 分类 GRE英语

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-21 / 阅读(117) / 评论(0) 分类 2016CRI中国国际广播电台

首先要说的是,在阅读教学的研究当中,语言学家们发现,一篇文章中不认识的单词占全文词汇总量的比例只要控制在8%以内,是绝对不会影响到我们对全文任何观点的理解的。基于这一点,我

发表于:2019-02-25 / 阅读(102) / 评论(0) 分类 GRE英语
学英语单词
a a school treat
a bout of illness
a string
acetonemias
amed
ammonia-maser-spectrum analyzer
atomique
atratosome
bone metastases
Bottcher's ganglion
British Insurance Law Association
canon largo
chigo bugaku (japan)
christo
classified advertisement
commey
concayve
concrete composition
country damage
covering-ups
currency flow
daewoos
data-processing equipment
delectabubble
depreciation-percentage of original cost
device output format block
differential meter
directional probe
distributional strategy
elasticity in price discrimination
enjoinings
epicyclic-gear
fanfolded
fatty granule cells
filtering agent
football players
fuel screen
glazier's point
gubenko
hit ... for six
hunt's-ups
hydrocarbon cement
integer-intensive
irregular isohemagglutinin
jackett
kagool
knurled knob
Lady Emma Hamilton
lies back
Lion, G.du
marginal channel
melodies
melopelagic plankton
minor calyx
modest petrovich mussorgskies
moss crepe
neuroleprics
nontoxic plasticizer
nuclear-warhead missile
osborn
osteofibromatous lipoma
overheated economy
papilla pili
peroxisome
plenipotentiaries
polyposia
postpipe
prepollen
pressurized blast furnance
puerulus larva
pyromagnetic substance
random input sampled-data system
rate distortion
reference model adaptive system
rhymist
ruggiero
Santa Clotilde
selenge (serenje)
sevenight
shear compression failure
short-water
signal dropout compensator
silencing
silybinomer
sleeving
spark-discharge device
spike microphone
Springport
sulci terminalis posterior
super girls
superbulky
the Pied Piper of Hamelin
Thymophylla
toady
trimeresurus gracilis
tween deck ceiling
vanger
vaporises
Waste Water Storage Tanks
whittlesea
Yiqian
Zhalanash