雷射束遥测

By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca

发表于:2018-12-08 / 阅读(126) / 评论(0) 分类 VOA常速英语2008年(四月)

澳洲流行天后 Kylie Minogue 最新MV《Crystallize》!小女孩演绎还没当歌星前的凯莉,拿着梳子对着镜子忘情歌唱,热舞。一代歌后的成长史呀,很励志的一首歌,有梦想就要去追逐。 歌词: When

发表于:2018-12-14 / 阅读(103) / 评论(0) 分类 流行英文歌曲

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(105) / 评论(0) 分类 2013年VOA慢速英语(二)月

I'd like to start with a short story. 我想先讲个故事。 It's about a little boy 有个小男孩 whose father was a history buff 他父亲是个历史爱好者, and who used to take him by the hand 常牵着他的手 to visit the ruins of an

发表于:2018-12-18 / 阅读(86) / 评论(0) 分类 TED演讲科技篇

Every year, millions of monarch butterflies fly thousands of miles to alight in one specific forest in Mexico. How do they know what direction to flutter? Scientists had thought that an insect GPS system in their brains steered them in the right dire

发表于:2018-12-24 / 阅读(139) / 评论(0) 分类 Scientific American(九)月

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(123) / 评论(0) 分类 不择手段背单词

Antennae Key to Butterfly Navigation A study in the journal Science shows that monarch butterflies' sun-related directional sensing is governed by antennae, not the brain. Cynthia Graber reports Every year, millions of monarch butterflies fly thousan

发表于:2019-01-02 / 阅读(148) / 评论(0) 分类 60秒科学

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(189) / 评论(0) 分类 英美文化

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(169) / 评论(0) 分类 2013年VOA慢速英语(五)月

On June 6, China published the first batch of photos captured by Gaofen-1, China's first high-definition earth observation satellite. Those pictures will provide valuable information of natural condition and disaster prevention. Li Dong has the detai

发表于:2019-01-19 / 阅读(122) / 评论(0) 分类 世界各地新闻集锦

The most ambitious of these studies is the Stonehenge Hidden Landscapes Project, led by experts from Birmingham University And Ludwig Boltzmann Institute in Austria.-As people walk over the Stonehenge landscape, they are aware of Stonehenge. They may

发表于:2019-01-23 / 阅读(136) / 评论(0) 分类 探索与发现2015年

Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(150) / 评论(0) 分类 英语语言学习

Leptin is a hormone made by fat cells that tells you when youre full. If you didnt have leptinand some people dontyoud eat too way too much, get real fat and almost certainly develop diabetes. Leptin acts like a natural appetite suppressant. Kids bo

发表于:2019-01-30 / 阅读(135) / 评论(0) 分类 60秒科学

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(139) / 评论(0) 分类 VOA常速英语2007年(十一月)

plateau n. (上升后的)稳定水平(或时期、状态) plug n.塞子 pockmarked adj.有麻点的 polar adj.两极的 pole n.极 porous adj.多孔渗水的 portable adj.轻便的 pose v.形成

发表于:2019-02-06 / 阅读(155) / 评论(0) 分类 英文语法词汇

NE China to set up two drone bases for marine surveillance SHENYANG, Oct. 20 (Xinhua) -- Two drone bases will be established in northeast China's Liaoning Province for real time surveillance on coastal waters, local authorities said Saturday. One of

发表于:2019-02-08 / 阅读(143) / 评论(0) 分类 英语新闻

Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄,传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距

发表于:2019-02-16 / 阅读(133) / 评论(0) 分类 经济学人科技系列

And the final thing is, again just to reiterate that there's this practical part, 最后,只是再一次重申,这个研究的实际应用方面, and so we've made these anti-quorum sensing molecules that are being developed as new kinds of the

发表于:2019-03-04 / 阅读(182) / 评论(0) 分类 TED演讲教育篇

Why this is interesting is because in the past decade we have found that this is not just some anomaly of this ridiculous, 这个发现之所以有趣,是因为在过去十年间,我们发现这种现象不只局限在这种古怪的、 glow-in-t

发表于:2019-03-04 / 阅读(194) / 评论(0) 分类 TED演讲教育篇

近日,我国首颗商用遥感卫星成功发射。这颗备受瞩目的星星都具备哪些功能?它的升空具有什么意义?在实现人们飞天梦的同时,它又能为我们的生活带来怎样的便利呢? 请看相关报道:

发表于:2019-03-11 / 阅读(177) / 评论(0) 分类 英文语法词汇
学英语单词
5'-iododeoxyuridine
a bargain is a bargain
accuracy of operation
actisomide
among which
amphr., amp-hr
amplitude modulation type ultrasonic diagnostic equipment
anthosperm
anticorrosive varnish
at the caprice of
axiom of sum-set
Aythya affinis
bazirite
beef olive
begonia cathagana hemsl.
besigomsin
bethe-weizs?cker cycle
building time
bulk freight container
Cardiomyomectomy
clean bed
coffee-cup
computer name
conclude a peace treaty
control of weeds in narrow-row soybean
Crookes's space
cymbidium actum ridl.
digimatic
dinner sets
diplodocine
electronic paramagnet resonance(EPR)
energy level diagram
entailed
ESCD
excess deficit
fancy one's chances
fielding team
fire retardant adhesive
froise
genus carissas
get the fag end
green sky
Hamathite
have one's eye s on the ball
high mass
Hill problem
holoblastic egg
inhibiters
isolation joint
jointing of tubes with tubesheet
keddahs
ktunaxa
lakme
lift one's face
literature review
make good his retreat
map design
marmalize
medicago minima lam.
MQFP
Najdi
network interconnected
noise-producing material
nonfoveal
npfl
Paracortol
penis locking sensation
perthitization
PHALLOSTETHOIDEA
phosphate comparator
pineapple jelly
pinky swearing
pit-pair
poconos
primitive choana
product owners
profit amount
quent
reverse engine
robinson jefferss
rotating ring
saturation of pole
set shots
smei-
Spanish
sprayed metal
steady-state characteristics
stratostat
Symphyocladia
three-islander
transmission-line current
tribalism
turkey reds
uk edition
universal asynchronous port
water-baseds
wholesale business
wooden wheel
ws_ftp
yhalwed
Zāwiyat Qirza