【材料学】初期表面能

This is Scientific American's 60-Second Science, I am Steve Mirsky, got a minute? You are pulling the tape off the roll and it starts to tear, or you are moving wallpaper and it refuses to strip off in strips or in what may be the most infuriating ca

发表于:2018-12-24 / 阅读(170) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Fingers are pretty nifty. They let you to grab a latte, type on a keyboard, even pull up your pants. But did you ever wonder: where do fingers come from?

发表于:2018-12-24 / 阅读(182) / 评论(0) 分类 Scientific American(九)月

dawdle /'dɔ:dl/ My sister dawdles over the dishes. Mother gets them done without wasting time. -- waste time; loiter; idle ﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌ vi. 浪费时间;闲荡 我妹妹洗起盘子来慢

发表于:2018-12-30 / 阅读(166) / 评论(0) 分类 突破英文词汇

Medical doctors are, by tradition, expected to be incorruptible. I found it incredible, therefore, to learn of recent reports that suggest an inclination to ignore patients needs, in favour of kickbacks from pharmaceutical companies. It appears that

发表于:2018-12-30 / 阅读(141) / 评论(0) 分类 胡敏托福词汇记单词

(Woman) Today I want to talk about the Earth's last major climatic shift, at the end of the last ice age. But first, let's back up a moment and review what we know about climatic change in general. First, we defined climate as consistent patterns of

发表于:2018-12-30 / 阅读(215) / 评论(0) 分类 托福听力短文

Create Your Own Moon Craters! What makes science really fun is when you get to do things yourself, so today were going to be making moon craters. Theyre the roundish blast-marks left on the moons surface by ancient meteorites. The moons surface is co

发表于:2018-12-31 / 阅读(115) / 评论(0) 分类 英语听力文摘 English Digest

地道美语听力播客English as a Second Language Podcast (ESLPod),是一家位于美国加州洛杉矶的英语教育研究机构推出的英文听力会话,于2005年7月23日首播, 主播Dr. Jeff McQuillan为南加州大学的语言学博士

发表于:2019-01-01 / 阅读(187) / 评论(0) 分类 地道美语播客

By Paul Sisco Washington 13 July 2007 NASA scientists have unveiled details of the space agency's plans to pierce the icy surface of Mars, near its north pole. The mission is designed to find evidence of water or life on the red planet. VOA's Paul S

发表于:2019-01-07 / 阅读(186) / 评论(0) 分类 2007年VOA标准英语(七月)

The U.S. housing sector remains weak, two years into an unprecedented decline. House prices, house sales, and house construction are all continuing to fall. Houses for sale in Denver, Colorado Home prices in the United States have fallen over eight

发表于:2019-01-13 / 阅读(183) / 评论(0) 分类 VOA标准英语2008年(十二月)

Kenya Moves Full-Steam Ahead on Geothermal Production Kenya is expanding plans to become one of the worlds top geothermal power producers with the start of explorations at a site called Menengai. The government is also aiming to make geothermal Kenya

发表于:2019-01-13 / 阅读(184) / 评论(0) 分类 VOA标准英语2011年(十一月)

Of the two, Cope's scientific legacy was much the more substantial. In a breathtakingly industrious career, he wrote some 1,400 learned papers and described almost 1,300 new species of fossil (of all types, not just dinosaurs)more than double Marsh's

发表于:2019-01-29 / 阅读(147) / 评论(0) 分类 万物简史

Hmm, my, you should take this to the security guards, hmm, theres quite a bit of cash in here, yes, the man wears thick glasses and peers at Henry through them as he speaks and Henry reaches around under the mans jacket and steals his wallet. Since H

发表于:2019-01-29 / 阅读(166) / 评论(0) 分类 时间旅行者的妻子

Climate change negotiators from 173 countries have agreed on an agenda after days of bickering over the scope of talks left little time for substantive discussions. The disagreement highlighted deep divisions between developing and rich countries on

发表于:2019-01-30 / 阅读(190) / 评论(0) 分类 英语新闻

This is Xaero - a vertical take-off and landing vehicle being developed by Masten Space Systems. The California start-up hopes the rocket will eventually carry pay-loads for NASA to altitudes of up to 30 kilometres, mainly to collect atmospheric data

发表于:2019-02-03 / 阅读(138) / 评论(0) 分类 英语新闻视频

2006职称英语考试模全真拟试题理工类B级(二) 第一部分:词汇选择(第1-15题,每题1分,共15分) 下面共有15句子,每个句子均有一个词或短语划有底横

发表于:2019-02-07 / 阅读(172) / 评论(0) 分类 实用英语

如今,高端大气上档次已经成为众人耳熟能详的网络用语,凭借其无与伦比的受欢迎度,高端大气上档次一度位居十大网络用语的榜首。这句让无数互联网迷们捶足顿胸的潮流时尚用语,到底

发表于:2019-02-08 / 阅读(183) / 评论(0) 分类 英语口语

The U.S. housing sector remains weak, two years into an unprecedented decline. House prices, house sales, and house construction are all continuing to fall. 美国的房屋市场依然疲软,房价已经史无前例地连续两年下跌。美国的房

发表于:2019-02-14 / 阅读(126) / 评论(0) 分类 VOA双语新闻 2008年12月

LOS ANGELES, June 18 (Xinhua) -- Microsoft Corp. unveiled Monday a family of tablets dubbed Surface, built on Windows 8, at an event in Los Angeles. Microsoft Chief Executive Steve Ballmer introduced the company's Surface family of tablets. The devic

发表于:2019-02-17 / 阅读(176) / 评论(0) 分类 英语新闻

Meet Chihira Junco, a tourist greeter at a shopping mall in Tokyo. 来见见地平Junco(Chihira Junco)吧,她是东京一个购物中心的游客迎宾员。 In her crisp blue button-down shirt, white blazer and pinstripe skirt, she stands in sensi

发表于:2019-02-18 / 阅读(153) / 评论(0) 分类 英语新闻

16.The early railroads were........the existing arteries of transportation: roads,turnpikes, canals,and other waterways. A.those short lines connected B.short lines that connected C.connected by short lines D.short connecting lines 答对率:50% 答案

发表于:2019-03-12 / 阅读(233) / 评论(0) 分类 托福英语
学英语单词
a happy new year
Albright knots
ammonium sulfite
announcements
antipsychology
apar
arabinonate
azotometer
ball grinding mill
bandars
bandobast
belle-lettrist
bright giant
burgeon out
busted convert
cask-conditioneds
Chardzhouskaya Oblast'
Choti
clad damage
closed bids
closest range
colo(u)r screen
Coturnix coturnix
cradle plate
cultelli
Datong District
decremented
died down
diegel
drawing of position to be detected
dynamic mapping system
Eminentia conchae
farm gate price
film actor
firths
form-feed character
generalized error
genus Ensete
good-good
heh
high activity data processing
hill crest
hippeard
hydrazino-borane
hypothrombinemia
Ibuki-yama
immigrant vein
investiga-tion
law of equal declivity
least-squared error fitting
littell
loop supply
mangements
Marfanid
Memmelsdorf
Mercuramide
merohedral
metro line
mixed-ability
montaiglon
mug-shot
national origin
near-field intensity measurement
NMR spectrometry
nonarguments
out of distance from
overprioritizing
palucci
papulosis
perfect imaging
photographic barograph
picked up after
premium on bond
realistic indentification
reclaimation area
restricted direct product group
rock-boot
schmincke's tumor
scotcil
seppelt
signal-carrier FM recording
single-throw crank shaft
sore-eyed
step-downs
Sterisil
Stewart's vein fluid
streptomycin
sub exciter
sundry credits
sympodially
technical issue
teflon-coated aluminum
tetracoordinated
TPFDL
traverse of hook nearest
Trinidadian and Tobagonian
tun-moot
unreadably
Unschuld's sign
untranslated sequences
vitriol of mars
ZA-worm