钠原子

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(150) / 评论(0) 分类 疯狂英语2003年

One of the leading researchers in the field of protein folding is David Baker of the University of Washington, in Seattle. 西雅图华盛顿大学的David Baker是蛋白质折叠领域研究者的领军人物之一。 For the past 20 years he and hi

发表于:2018-12-05 / 阅读(98) / 评论(0) 分类 经济学人科技系列

You probably already know everything is made up of little tiny things called atoms 你也许已经知道所有的东西都是由微小的原子组成。 You might even know that each atom is made up of even smaller particles called protons, neutrons

发表于:2018-12-08 / 阅读(63) / 评论(0) 分类 TED演讲教育篇

[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(68) / 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(123) / 评论(0) 分类 雅思英语

Intermediate filaments - unlike microfilaments and microtubules, they are verystable. Instead of being stacked proteins, as in actin, intermediate filaments are built of interlocking proteins. A dense

发表于:2019-01-03 / 阅读(74) / 评论(0) 分类 医务英语

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(115) / 评论(0) 分类 Scientific American(三)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(52) / 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(81) / 评论(0) 分类 阅读空间

Salt is believed to be the single most harmful thing in our food, contributing to high blood pressure For years doctors have been telling patients with high blood pressure to cut down on the amount of salt in their diet. Now a prestigious panel of ex

发表于:2019-01-13 / 阅读(128) / 评论(0) 分类 VOA标准英语2010年(四)月

Lesson Sixteen 听力部分 Dialogue Completion: Listen to the tape repeatedly and try to complete the following dialogues, using the exact words or phrases that you hear on the tape. A Man: Hi, you know. I get the_____feeling that I am _____ . Woman

发表于:2019-01-14 / 阅读(109) / 评论(0) 分类 王强口语 第二册

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(78) / 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(64) / 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(78) / 评论(0) 分类 英语口译

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(58) / 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(66) / 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(70) / 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(67) / 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(64) / 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(78) / 评论(0) 分类 英语口语
学英语单词
82430VX
absolutely convergent power series
Adams I.
american dry
anamorphic optics
arthrolysis
aucune
Ayrton-Jones balance
battery-life
berghoef
beryllium ethide
body bumping tool
Bosanski Petrovac
cap nuts
capacity region of down bound
circumference speed
coal mining industry
Colina do Norte
crust of weathering
Cubillas, R.
cut a swathe through sth
deafness-mutism
deciduous stipule
dense material
design complexity
Dipyridoxolyldisulfide
direct concatenation control
dormant law
doublelever type
easons
elastic limit in torsion
elastic-plastic mechanics
enterprise edition
Epilunatum
fed lamb
forthrivers
functionalrequirement
GAHS
ganglion crest
genus Bruchus
Gimsφy
glass transition temperature (tg)
global capitalism
going public
grating constant
high-pressure water derusting
imperfectively
inerasable
Ipomoea pileata
iris tingitanas
ISHCN
isostasy of earth's crust
jaris
kidnapping
kroeger
lashes out at
lateral collision test
live in one's trunks
lose the exchange
lupinid
marginal check
marketing failure
massaman
monochrome servicing
mtjs
not stir an eyelid
nuevos
numerical list of commodities
olafs
Orgueil meteorite
otozamites
Panu
pente
phlegmasia myoica
plutonium tetrafluoride (puf4)
post binding
pragmatic sanction
prolong the period of validity
purinone
qlty.
rotary agitator
scarin'
semivolcanic explosion
sidelurch
small data set
smirnovite
smith's disease
spellacy
stamp of approval
tac-point
Tekapo R.
track rod end
tread taping point
ultra-spherical polynomial
unaffied
uncontested
ussie
v-groove lensless component
variable density sound track
Vernante
weathering steel
wedge and groove suture