[核] 人工放射性源

Variety is the Source of Creativity Variety is the source of creativity. Variety injects the fluid of creativity into the most hollow minds. To ensure a triumphant career, variety combined with flexibility to fit in diverse circumstances is the major

发表于:2018-11-30 / 阅读(414) / 评论(0) 分类 24篇魔术美文串记4级词汇

Recording technology has changed a lot over the years, but you can still do one essential thing. You sit in front of a microphone and you tell a story, which here we are again this Friday morning because it's time for StoryCorps. It's an oral history

发表于:2018-12-02 / 阅读(212) / 评论(0) 分类 2007年NPR美国国家公共电台

Scientists at the Massachusetts Institute of Technology (MIT) have created what could be a breakthrough in providing clean, alternative energy. Researchers have invented an artificial leaf that splits water into hydrogen and oxygen and stores the ene

发表于:2018-12-07 / 阅读(197) / 评论(0) 分类 创新英语

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(253) / 评论(0) 分类 新东方背诵文选

Researchers Create Artificial Skin With Sense of Touch Scientists have recently made considerable gains in creating human-like artificial limbs, but they still look and feel artificial. That could change with a development from South Korea. Researche

发表于:2018-12-16 / 阅读(124) / 评论(0) 分类 VOA标准英语2015年(一月)

Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Anne Muir. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 3 You have got to go in spring. I

发表于:2018-12-19 / 阅读(168) / 评论(0) 分类 环球英语 Spotlight

MR CAVORS FLYING MACHINE When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon. As it had neither wings nor an engine, I was amazed and asked him how his machine could fly. The secret lay in

发表于:2018-12-29 / 阅读(219) / 评论(0) 分类 人教高中英语高二

Artificial Muscle Brings Back Blink A study in the Archives of Facial Plastic Surgery reports the development of an artificial muscle system that could restore the ability to blink to stroke and injury patients. Cynthia Graber reports Most of us blin

发表于:2019-01-02 / 阅读(249) / 评论(0) 分类 60秒科学

今天我们要学的词是source。 Source, 意思是来源。 Social Security is a reliable income source for seniors, 社会保障是美国老年人可靠的收入来源。 Police have received thousands of tips, according to a source close to the

发表于:2019-01-07 / 阅读(165) / 评论(0) 分类 英语每日一词

By Kari Barber Dakar 21 March 2008 In many African countries, few people have access to computers and the Internet. Experts say this is hindering development and preventing students from being able to compete for jobs. At a conference in Dakar this w

发表于:2019-01-07 / 阅读(193) / 评论(0) 分类 VOA标准英语2008年(三月)

Mr Cavors Flying Machine When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon.As it had neither wings nor an engine,I was amazed and asked him how his machine could fly.The secret lay

发表于:2019-01-09 / 阅读(326) / 评论(0) 分类 高中英语听力人教版第二册

Samasource Provides Jobs for Poor Via the Internet The World Bank says 1.3 billion of the world's seven billion people live in extreme poverty, surviving on less than $1.25 a day. Aid organizations have long relied on charitable contributions to help

发表于:2019-01-13 / 阅读(190) / 评论(0) 分类 VOA标准英语2011年(十二月)

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

发表于:2019-01-14 / 阅读(213) / 评论(0) 分类 VOA标准英语2011年(四月)

Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

发表于:2019-01-14 / 阅读(177) / 评论(0) 分类 VOA标准英语2011年(二月)

By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide

发表于:2019-01-19 / 阅读(144) / 评论(0) 分类 VOA常速英语2008年(二月)

Alan, Canada speaker How do I get my news? Well, when I lived in Canada I got my news from primarily watching television and reading the newspaper. But since I moved over to Asia and started using computers more and more I find that I get my main sou

发表于:2019-01-23 / 阅读(275) / 评论(0) 分类 一起闲话英语-English Chitchat

In the spring of 1904, Rutherford traveled to London to give a lecture at the Royal Institutionthe august organization founded by Count von Rumford only 105 years before, though that powdery and periwigged age now seemed a distant eon compared with t

发表于:2019-01-29 / 阅读(145) / 评论(0) 分类 万物简史

今天我们要学的词是 artificia。Artificial 人造的。artificial intelligence 人工智能。不久前,The FDA approved a new artificial retina device that would help some people regain part of their sight. 美国食品和药物管理局批准

发表于:2019-01-30 / 阅读(148) / 评论(0) 分类 英语单词荟萃

Artificial Speech Mimics Real Thing 合成声音发展渐入佳境 未来虚拟声音真假难辨 At a University of Arizona laboratory, Professor Brad Story analyzes the voices of singers, actors and public speakers both live and on audio tape. 在亚

发表于:2019-02-12 / 阅读(215) / 评论(0) 分类 VOA标准英语2011年(十一月)

A scare in Japan over beef contaminated with radioactivity spread on Sunday, with more areas of the country reporting tainted meat. Japanese media say meat from 132 cattle that ate straw contaminated with extremely high levels of radioactive cesium h

发表于:2019-02-18 / 阅读(131) / 评论(0) 分类 英语新闻
学英语单词
ach-laut
Algerian capital
alligator weeds
AND symbol
androgenic hormones
assists
asymptotic convergence factor
automotive radar systems
Barruecopardo
bastilla fulvotaenia
be in duty bound to do
bibliographic utility
bifunctional ion exchanger
bin unloader
Bonnot's gland
celestial equators
center protector
cinching
clear a fault
continuous rigid frame bridge
coolant inlet
counter-lock
cranial cartilage
crust forming agent
cylindroid aneurysm
Dashtjerd
decline in production
dermat(o)-
detent mechanism
diarylethenes
diggin
doggarts
drela
duino elegies
elwells
engaging and disengaging device
entry box guide
exsolves
fouldering
gentleman's measure
gorgasia japonica
gross-crop rotation
heteroplasmic
I want to know
illidan stormrage
in-lb.
interactive marketing
intermediate fix
light flint
Linosite
management package
Maniron
Naja naja
negro music
nice about it
nicked it
nito
non propagation
odogenesis
old maid flower
optical bandwidth
oval lamp cover
oval-square breakdown sequence
overdelicacies
pentamethylaniline
platycrater serrata makino
polyomavirus sv40 virus
PRCS (primary reactor coolant system)
problem of determining the order
public float capitalization
puzzle boxes
ramalina intermediella
regasify
report author
school leaver
scises
scoopmobile
scorpionist
sheet pilings
Sherner
shoe bite
space simulation facility
spectrum parameter
spinworthy
stadia interval
stainless steel fertillizer belt
system of rotating green manure crops
tablebase
Tarbolton
theoretic frequency
time-to-live
timopentin
total reflection factor
towing pin
trapezohedral hemihedral class
trust inter fund transaction
two-beam storage ring
unguitractors
vehicle type detector
wagrams
weighting capacity
zona detritus