移位原子

A Century of Memories (1940-1949) On the first Sunday in December 1941, Americans were doing what Americans did on any normal Sunday.

发表于:2018-11-28 / 阅读(266) / 评论(0) 分类 疯狂英语2003年

More than 30 million people were displaced within their own countries last year. That number comes from a new report by the Internal Displacement Monitoring Centre and the Norwegian Refugee Council. The two groups blame criminal violence and natural

发表于:2018-12-07 / 阅读(171) / 评论(0) 分类 2017年VOA慢速英语(五)月

[00:00.00]Lesson 4 Atom [00:01.95]原子 [00:03.89]The really strange thing about atoms is that most of us will never see one. [00:08.87]原子最奇特之处在于绝大多数人永远也无法看到它。 [00:13.84]Atoms are so small that it's impo

发表于:2018-12-08 / 阅读(152) / 评论(0) 分类 赖世雄学英语第四册

雅思听力场景词汇:化学词汇 在雅思听力考试场景中,化学相关的场景的词汇较为生涩,平时生活中可能也运用得比较少,以下的词汇供大家参考喔。 molecule 分子 particle 粒子 ion 离子 particle

发表于:2018-12-19 / 阅读(217) / 评论(0) 分类 雅思英语

This is scientific Americans 60 Second Science. I'm Steve Mirskey. Got a minute? The lure of gold can be electric to some people even though the element is chemically inert on the large scale. But the researchers from Georgia Tech report that down at

发表于:2019-01-04 / 阅读(195) / 评论(0) 分类 Scientific American(三)月

Pakistan mobilising for displaced 巴基斯坦决定安置流离失所人员 Authorities in Pakistan say they are mobilising to receive as many as half a million people displaced by fighting in the Swat Valley. A minister in North West Frontier Province told the

发表于:2019-01-07 / 阅读(178) / 评论(0) 分类 英语新闻

By Lisa Schlein Geneva 11 September 2007 The U.N. refugee agency reports the first two out of 40 camps for internally displaced people are to be closed Tuesday in Uganda's northern Lango region as most of the IDPs there have gone home. The UNHCR says

发表于:2019-01-08 / 阅读(188) / 评论(0) 分类 2007年VOA标准英语(九月)

We have bigger houses and smaller families; more conveniences, but less time; we have more degrees, but less common sense; more knowledge, but less judgement; more experts, but more problems; more medicine, but less wellness. We have multiplied our p

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 英语美文

We have multiplied our possessions, but reduced our values. We talk too much, love too little and lie too often. We've learned how to make a living, but not a life; we've added years to life, not life to years. We have taller buildings, but shorter t

发表于:2019-01-11 / 阅读(171) / 评论(0) 分类 阅读空间

Congolese Displaced on the Move Again Many civilians displaced by the fighting in the eastern DRC are on the move again. The U.N. refugee agency describes the situation as fluid and unstable, making it harder for humanitarian agencies to provide assi

发表于:2019-01-14 / 阅读(154) / 评论(0) 分类 VOA标准英语2012年(十一月)

But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a

发表于:2019-01-17 / 阅读(179) / 评论(0) 分类 TED演讲教育篇

(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g. The hydrogen atom is near1y l6 times as

发表于:2019-01-17 / 阅读(182) / 评论(0) 分类 英语口译

英语中表示倍数减少的表达方法(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g

发表于:2019-01-17 / 阅读(178) / 评论(0) 分类 英语口译

今天我们要学的词是 displaced. Displaced 颠沛流离的。U.N. Secretary General Ban Ki-moon called the current refugee crisis, with over 70 million displaced people, totally uncontrollable. 联合国秘书长潘基文说,目前7000多万人

发表于:2019-01-26 / 阅读(193) / 评论(0) 分类 英语单词荟萃

Science and Technology Fundamental physics Antimatter of fact 科技 基础物理 反物质研究突飞猛进 Researchers at CERN have held on to anti-atoms for a full quarter of an hour 欧洲核子研究中心的科研人员让反原子颗粒存在时

发表于:2019-01-26 / 阅读(134) / 评论(0) 分类 经济学人科技系列

Fortunately more sober types were at work elsewhere. In 1808, a dour Quaker named John Dalton became the first person to intimate the nature of an atom (progress that will be discussed more completely a little further on), and in 1811 an Italian with

发表于:2019-01-29 / 阅读(156) / 评论(0) 分类 万物简史

The structure of atoms and the significance of protons will come in a following chapter, so for the moment all that is necessary is to appreciate the organizing principle: hydrogen has just one proton, and so it has an atomic number of one and comes

发表于:2019-01-29 / 阅读(167) / 评论(0) 分类 万物简史

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

发表于:2019-02-04 / 阅读(147) / 评论(0) 分类 英语新闻

俗话说:一母生九子,九子各不同。这句话在我邻居家孩子的身上体现得淋漓尽致。大女儿心灵手巧,做什么像什么;而二女儿却刚好相反,总是笨手笨脚。All thumbs就用来形容她这种笨手笨脚

发表于:2019-02-06 / 阅读(158) / 评论(0) 分类 实用英语

1.心事重重 some thing weighs heavily on ones mind The boss is quite down these days. He seems to have something weighing heavily on his mind. 老板这几天沉默寡言,看起来好像是心事重重的 2.苦苦哀求 press ones suit She press

发表于:2019-02-19 / 阅读(166) / 评论(0) 分类 英语口语
学英语单词
a penny plain and twopence coloured
A. S. L. O.
arctic hight
Ascomycetae
assembly and operating corridor
banin bangou
barley-breaker
Bietschhorn
bone spavin
bratlash
break bulk ship
bulk queue
Byas'-Kyuyël'
candidate gene
car-seat
Carex indica
Carnegie Ridge
catalytic cracking
cetyl bromide
charging crane
chiastolites
cistrum
climents
cockpit voice recorders
cold supergiant
Connami
cosm(o)-
culture of special species
dental laboratory
diffusion inductance
doer
double balanced mixer
dryf
elbourne
enduron
field-of-vision
fixed head sprinkler
flashing high intensity light
flip sides
forcefully
front passage fog
geologic examination
gomphid
great pyreneess
hidated
hogger pump
hound's tongues
Hsataw
import-export link system
in-basket
K Ci
kalia
Kiekert
leccinum griseum
loaded valve
lock-keeper
loop error
low-expansion material
mares-tail
maximum spiral angle
mbiss
Mikhail
Mirapon F30
murmureth
nitrite ice
obstructive emphysema
old-folks
packaged fresh-water generator
plantar warts
plasma ball
plun-jet
polykaryotic
postal survey
pouched mice
pseudolagarobasidium subvinosum
pulsella
Raritan R.
rational index
rejuvenation head
Rh-sperrylite
SAOL
screenscraping
screw-propelled
seed contamination
sensitivity of follow-up system
soot collector
sovrocks
speciality fund
stabilized dolomite brick
steam separator assembly
synchronous concatenation
terbumeton
tone-modulated waves
transformer kiosk
travelled
tritoniss
two furrow plow
upward zero-crossing
vada pav
whisker structure
work difference
zapatas