纳米粒子

Researchers: Recycled Concrete's Time Has Come SOUTH BEND, INDIANA Recycling in the construction industry has become big business. It's easy to find new life for everything from old windows to wood beams. But until now, concrete the most widely used

发表于:2018-12-08 / 阅读(84) / 评论(0) 分类 VOA标准英语2016年(八月)

Snow 雪 Snow comes from clouds, and it is made of snowflakes. 雪从云里来,它是由雪片形成的。 As snowflakes grow bigger and heavier in the cloud, they fall toward the ground. 当云中的雪片变得更大、更重时,它们就会落向

发表于:2018-12-13 / 阅读(51) / 评论(0) 分类 与美国小学生一起学英文第1册

Here's the key part. 接下来是关键的部分。 The solution nearest the wall spins faster than the solution closer to the middle. 离试管壁最近的溶液,要比中间的溶液旋转得更快。 That difference in velocity creates sheer str

发表于:2018-12-18 / 阅读(67) / 评论(0) 分类 TED演讲教育篇

Textalyzer Aims at Deadly Distracted Driving 能够测试驾驶时是否分心的神器 Fifty years ago, British inventors made and marketed the first electronic breathalyzer. The alcohol gauge has become standard issue for U.S. law enforcement crack

发表于:2018-12-24 / 阅读(58) / 评论(0) 分类 2017年Scientific American(八)月

新gre作文写作考察考生完成题目过程中是否能够融合批判性思维和分析写作能力,以下是gre考试写作部分issue的优秀写作实例,通过这些优秀范文或是习作,考生可以借鉴里面的短语、句子或思

发表于:2019-01-08 / 阅读(62) / 评论(0) 分类 GRE作文

[00:11.60]WARMING UP [00:16.04]How many new uses can you think of for the folowing items? [00:36.49]reminds us of the appearance of nanotechnology, [00:53.76]according to which nothing is useless and [01:04.91]no garbage or waste material to speak of

发表于:2019-01-10 / 阅读(209) / 评论(0) 分类 高中英语人教版高一年级

轻松惬意:苹果新款iPod nano广告歌 Chairlift - Bruises 苹果公司每一推出新产品均会选择一首超惹人爱的歌曲。这不,你现在听到的这首歌曲就是苹果最新发布的2008第四代iPod nano广告曲《Bruises》。

发表于:2019-01-10 / 阅读(93) / 评论(0) 分类 英文广告歌曲

Oregon Advertising Studio Tracks Fukushima Radiation If you were to picture the sort of person who might take the lead in gathering radiation data from the Fukushima nuclear accident, Marcelino Alvarez probably wouldn't come to mind. My background is

发表于:2019-01-13 / 阅读(94) / 评论(0) 分类 VOA标准英语2011年(七月)

Panel Urges Study of Nanomaterial Risks The nano market is booming. In 2009 developers generated $1 billion from the sale of nanomaterials. The global market for products that rely on these materials is expected to grow to $3 trillion by 2015. Yet wi

发表于:2019-01-14 / 阅读(81) / 评论(0) 分类 VOA标准英语2012年(二月)

网上求职易犯的错误 Don't just hit up the big guys. 不要只关注大型的招聘网站。 Big-name websites like Monster and CareerBuilder are wonderful resources for online job hunting, but don't stop there. They charge fees that some smal

发表于:2019-01-17 / 阅读(54) / 评论(0) 分类 英语学习方法

Of all the plastic produced since the 1950s, less than 10% has been recycled. 20世纪50年代以来,产生的所有塑料中,只有不到10%得到回收。 The vast majority ends up being dumped, most of it in landfill. 其中大部分都成了垃

发表于:2019-01-26 / 阅读(71) / 评论(0) 分类 经济学人科技系列

Cameras were flashing at this recent Constellations concert in Atlanta. And the morning after, fans who wanted to see what has everybody else got, could go to a new website thats helping to hit the right note. It is called Recreate Mynight and it con

发表于:2019-02-02 / 阅读(46) / 评论(0) 分类 英语杂谈

现在正是一年中最热的时候,在英语中,三伏天有一个特殊的表达方式 dog days of summer。说到狗,大概大家都对夏天里吐着舌头乘凉的狗狗印象很深吧!那么,这个习语又和狗有什么关系呢?

发表于:2019-02-02 / 阅读(61) / 评论(0) 分类 实用英语

导语:上课时躲在书后面打盹儿,开会时用手挡着眼睛打盹儿,被逮着了就拿春困、秋乏、夏打盹儿,睡不醒的冬三月来做借口。大概每个人都经历过这样的情形吧,咱们今天就来说说这个打

发表于:2019-02-03 / 阅读(99) / 评论(0) 分类 英语口语

苹果iPod nano会摄像Miss Li清新广告歌 Bourgeois Shangri-La Miss Li Vacation and barbecue Small talking and nothing to do You keep it locked in a shopping cart A bourgeois shangri-La Got a feeling that I don't belong Got a feeling that I shou

发表于:2019-02-07 / 阅读(73) / 评论(0) 分类 好听的英文歌曲

By Birungi Machrine Kampala 19 February 2008 A documentary has been released that depicts child labor in Uganda. The film, called Stone Cold is by local writer Michael Wawuya. It explores the causes and costs of child labor in a typical village. Voic

发表于:2019-02-09 / 阅读(92) / 评论(0) 分类 VOA常速英语2008年(二月)

Let's begin by looking at what we currently understand about the neuroscience of Alzheimer's. 让我们先看看目前神经学上对老年痴呆的了解。 Here's a picture of two neurons connecting. 这是一张两个神经元连接的图。 The p

发表于:2019-02-13 / 阅读(86) / 评论(0) 分类 TED演讲国际问题篇

Marine Mammals Since there is such an abundance of food in the sea,it is understandable that some of the efficient, highly adaptable, warm-blooded mammals that evolved on land should have returned to the sea.Those that did have flourished. Within abo

发表于:2019-02-17 / 阅读(61) / 评论(0) 分类 双语有声阅读

Leaders Satellites Space: the next startup frontier 社论精粹 卫星 太空:下一个 Where nanosats boldly go, new businesses will followunless they are smothered with excessive regulations 微型卫星大胆地去哪儿,新的商业就会跟去

发表于:2019-02-24 / 阅读(99) / 评论(0) 分类 经济学人文艺系列

春眠不觉晓啊,这时候的课堂上应该有很多鸡啄米现象吧。被老师逮到了就不好了,这时候得老老实实承认,I'm taking a nano nap.什么意思呢?就是我们所说的打盹儿。 上课时躲在书后面打盹儿,

发表于:2019-02-26 / 阅读(78) / 评论(0) 分类 实用英语
学英语单词
acuminating
aix galericulatas
al-zaidi
Altarelli
an off chance
antijamming blanking
antiunionization
attemperately
auroral photometry
automa
banded granite
body fascism
by anticipation
condition load
contrasta
Copernican principle
cross section imaging
de facto convertibility
depreciation by straight-line
derandomising
dialydesmy
distributable assets
double side-band transmission (dsb)
downward flow
eagerest
Eenzamheid Pan
electrophilic group
em score
eMedicine
Euscorpius
falco subbuteo streichi
fast evolving star
flash-board
fold coast
for so long
get with the programme
global circulation
guided ballistic missile
half-channel scram
hepatopyretic
high frequency conditioning
in cross section the cotyledon
inexplicableness
infectible
inoperative period
inward invasion syndrome
irrogate
jaynie
kappanensis
l-tryptophane peroxidase
loanperformance
lower standard
Lyman Frank Brown
lymantria
maltopentaose
manging
matured bill
mental-representation
Mesoxalyiurea
moralisations
mutational synergism
New Zealand hemp seed
nicodemo
object statement
persolve
personal inquiry
phase oxidation
phosphating
pokeberrygenin
pollenation
prader-willi
premium high speed alloy
private switched network
problem avoidance procedure
pterolophia obscura postmaculatoides
quartz tuning fork
region-specific
right place
rimosities
rotation crop
rupture of ligament
scum rubber
semantically
semiprimary ring
separate checks
serrated saddle
set his mind at ease
Shoahs
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soil new growth
special credit fund
steering resisting torque
Streatham
talk business
three wise men
TMJR
to keep up appearances
umens
union twist yarn
unmountable
unspent
vinylbitone