亲电子原定域能

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(164) / 评论(0) 分类 疯狂英语2003年

[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(78) / 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(131) / 评论(0) 分类 雅思英语

A senior Chinese diplomat has suggested that efforts to localize Chinese culture overseas have been successful and beneficial. Our correspondent in southern Africa Gao Junya has the details. At the JJ Auditorium in Mauritius, a gala named The Charm o

发表于:2018-12-24 / 阅读(80) / 评论(0) 分类 2018CRI中国国际广播电台

Unit 6 TEXT I Atomic Cars Text Every motorist dreams of a car of the future that does not have to be refuelled every few hundred miles, a car that will cost little to run because there is no outlay on

发表于:2018-12-29 / 阅读(100) / 评论(0) 分类 新编大学英语教程

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(124) / 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(59) / 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(90) / 评论(0) 分类 阅读空间

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(90) / 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(72) / 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(91) / 评论(0) 分类 英语口译

And you know why?. 知道为什么吗。 No one knows why. 没人知道为什么。 If a umass Lowell engineer. 如果马萨诸塞大学洛厄尔分校的。 Or scientist can figure it out. 某位工程师或科学家能够弄清。 He or she may be

发表于:2019-01-25 / 阅读(74) / 评论(0) 分类 公众人物毕业演讲

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(65) / 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(76) / 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(80) / 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(75) / 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(77) / 评论(0) 分类 实用英语

Meanwhile the tireless Rutherford, now back at Cambridge as J. J. Thomson's successor as head of the Cavendish Laboratory, came up with a model that explained why the nuclei didn't blow up. He saw that they must be offset by some type of neutralizing

发表于:2019-02-17 / 阅读(100) / 评论(0) 分类 万物简史

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(91) / 评论(0) 分类 英语口语

On a previous Moment of Science we discussed one of the problems with turning yourself invisible. Sure, it sounds like fun. But a little physics showed us that the invisible man couldn't see anything either, because in order to see, light has to inte

发表于:2019-03-06 / 阅读(136) / 评论(0) 分类 英语时差8,16
学英语单词
abassis
acryloyls
apparent creep
arca navicularis
Arrhenius theory of electrolytic dissociation
askwith
astronometry
astronomical coordinate measuring instrument
B.Ind.Ed.
bird of Juno
bridge model wind tunnel test
brizot
bwoy
capring
cast-steel shot
certified transfer
circumanal area
concernments
cuspis anterior
cutting-horse
dead-burn
deerling
Default Probability
di-hexahedron
diagonal stay
drip-proof burner
dynamic geomorphology
dysgeneses
easternly
electropneumatic point circuit controller
electroradioimmunoassay
Enhanced MetaFile
Enāyetpur
expansion theory
fluorophilic
functional unit
gasket ring
gastrointestinal gas expansion
goal-seeking
grizzly level
hawkens
head rhyme
hereditary obesity
high-occupancy vehicle lane
hook frame
house-sittings
hspl
i/o error manager
informaticss
kind of benefits
kumase
layout draftsman
log viscosity
loose-stone
merrera
mixed-species
moveout correction
Munsell curve
nacetyl
neolithic shoreline
neutral color filter
nose-ring block
oil-paint
one-and-a-half address
optimark
panbroil
pin the tail on the donkey
pinched stem
pre-feasibilities
privileged
reedsport
reinterpretable
representatives
reprojected
rockefeller family
saddle head
safflorite
same order
signet-ring cells
skram
sluttishly
smoothing current
software methodology
stanziola
straight-line pen
stutter gun
supermalloy alloy
system of cartelized rate
talk set
taskres
the hairdryer treatment
throw ... money about
timor-leste
tonify the kidney
transcrtin
tsses
twelvesomes
unnoyous
vat under brine
vitrified hond
voltage-divider