无束缚粒子,自由粒子

unbound particle的用法和样例:

例句

  1. In our free particle example, it turns out that it is impossible to find a wavefunction that is an eigenstate of both position and momentum.我们以自由粒子为例,找到既有位置又有动量的波函数是不可能产生的。

In the square outside the British Library in London is a sculpture of Sir Isaac Newton - The first man who asked why apples seem always to fall towards the centre of the earth. Maybe they chose it for the spot because it shows a great scientist at wo

发表于:2018-12-07 / 阅读(183) / 评论(0) 分类 英文杂志-Magazine

The Excitement of Three-Part Phrasal Verbs Popular music can teach you a lot about the English language. You may not realize it, but musicians are actually teaching you about English grammar in each song they perform. Consider this song by the famous

发表于:2018-12-08 / 阅读(184) / 评论(0) 分类 2016年VOA慢速英语(九)月

1998 翻译延伸 5、Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics, and many astrophysicists have been convinced for the better part of a decade that it is tru

发表于:2018-12-17 / 阅读(161) / 评论(0) 分类 考研英语长难句讲解

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

Transcript This is Scientific American's 60-Second Science, I am Cynthia Graber.This will just take a minute. Physicists at the Brookhaven National Laboratory have been able to send information ahead of particle beams racing at nearly the speed of li

发表于:2018-12-24 / 阅读(219) / 评论(0) 分类 Scientific American(二)月

模仿文本:Deep underground here on the Swiss-French border, a momentous scientific discovery earlier this year had tabloid headline writers for claiming the discovery of the God particle in the subatomic shrapnel from a man-made Big Bang. But wa

发表于:2018-12-28 / 阅读(146) / 评论(0) 分类 英音模仿秀

It was supposed to be the greatest science experiment ever, and it's certainly the most expensive. The large hadron collider designed to recreate the Big Bang theory with colliding particles has so far cost nearly 10 billion dollars and counting. Sci

发表于:2019-01-07 / 阅读(181) / 评论(0) 分类 cnn2009年(十一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The 2008 Nobel Prize in physics goes to an American and two Japanese scientists for work related to symmetry in particle physics. In the early 1960s, Yoichiro Nambu of

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science, I'm Steve Mirsky, got a minute? Every Star Trek fan knows theres matter and antimatter, but why is there apparently so much more matter than antimatter?Scientific American's JR Minkel: Two recent exp

发表于:2019-01-08 / 阅读(189) / 评论(0) 分类 Scientific American(四)月

Fermilab Scientists Optimistic About Finding Higgs Boson Particle Scientists at the CERN laboratory in Geneva, Switzerland say they are encouraged by new data suggesting their Large Hadron Collider, the world's most powerful atom-smasher, is one step

发表于:2019-01-13 / 阅读(177) / 评论(0) 分类 VOA标准英语2011年(十二月)

Books and Arts; Quantum physics 文艺;量子物理学 House of dreams;Scientists race to explain why the Higgs boson matters 想象的殿堂;科学家竞相解释为什么希格斯玻色子至关重要 Higgs Force: The Symmetry-Breaking Force

发表于:2019-01-26 / 阅读(244) / 评论(0) 分类 经济学人文艺系列

The Big Bang theory isn't about the bang itself but about what happened after the bang. Not long after, mind you. By doing a lot of math and watching carefully what goes on in particle accelerators, scientists believe they can look back to 10-43secon

发表于:2019-01-29 / 阅读(174) / 评论(0) 分类 万物简史

How about 'Pig Supreme'? asked one of the lambs. 细皮肥猪怎么样?一只小羊问道。 No good, said Charlotte. It sounds like a rich dessert. 不好,夏洛说,这听上去像油腻的菜名。 How about 'Terrific, terrific, terrific'? as

发表于:2019-01-29 / 阅读(176) / 评论(0) 分类 夏洛的网

43 空气污染能引发心脏病 DATE=7-6-01 TITLE=ENVIRONMENT REPORT - Pollution Linked to Heart Attacks BYLINE=Cynthia Kirk (Start at 59

发表于:2019-01-30 / 阅读(328) / 评论(0) 分类 自然探索

China's proposed supercollider will be twice the size of the Large Hadron Collider or CERN in Switzerland that helped discover the Higgs Boson or the God Particle in 2012. It will also serve as a symbol of the country's rise as a global superpower by

发表于:2019-02-07 / 阅读(153) / 评论(0) 分类 英语新闻

GENEVA, Sept. 26 (Xinhua) -- Two million people worldwide are estimated to die from air pollution each year, the Geneva based World Health Organization (WHO) said in its air quality report published on Monday. According to data collected by the WHO f

发表于:2019-02-08 / 阅读(172) / 评论(0) 分类 英语新闻

本期内容: Donald Trump gained the 1,237 delegates needed for the Republican presidential nomination, as a small group of unbound delegates told the Associated Press they would support him at the partys convention in Cleveland in July. The tycoo

发表于:2019-02-13 / 阅读(142) / 评论(0) 分类 夏说英语新闻晨读

BEIJING, May 20 (Xinhuanet) -- Scientists have discovered a Jupiter-sized exoplanet that is completely unbound from a host star, according the scientific journal Nature published Thursday. The research was conducted by astrophysicists from Osaka Univ

发表于:2019-02-17 / 阅读(142) / 评论(0) 分类 英语新闻

Scientists with the European Organization for Nuclear Research, or CERN, have begun working again after a two-year hiatus. The Large Hadron Collider was shutdown in 2013 for a major refit. It's allowed for its power to be doubled, enabling scientists

发表于:2019-02-18 / 阅读(140) / 评论(0) 分类 英语新闻

IN THE NEWS - Scientists May Have Found 'God Particle' 新闻报道 - 科学家们可能发现了上帝粒子 This is IN THE NEWS in VOA Special English. 这里是美国之音慢速英语新闻报道。 This week, scientists in Switzerland reported a

发表于:2019-02-18 / 阅读(198) / 评论(0) 分类 2012年VOA慢速英语(七)月
学英语单词
anti-detonation
athri
attwaters
Audeghle
beacon service
benzhydrylidene
Biddle,John
bosonizes
bright quenching oil
c(h)olestyramine
Calinite
change of state
charming manners
chromatopolarography
cockerel
collects
computer-use
crew supply agency
cupric acetoarsenite
debris storm
die typing
disc without hole
drop one's aitches
elfish
emc (electro magnetic compatibility)
equipos
feed-back ratio
glazed finish
gradient elution TLC
heretog
Hidimba
high-carbo
introsensible
kfor
Kvichak
laser direction measurement
layer chromatography
linear perspective
long life assets
marine disposal
Merseburg triad
metathomsonite
microfacies
military ocean technology
morning-watch
mucates
mutilated coin
nanofarads
Neosporidia
nested statistical models
non representative
nonstop passing
Object-Oriented Programming System
online marketing
operational-control information
overfitted
pea-tree
photo-graph
pigmentated
PLMN
private consumption
profit-volume charts
qualitative measurement
raghorn
Rauwiloid
reconstructive transformation
renuent
rugose colony
sexadecimal hexadecimal notation
short circuited rotor
silver dollars
sirens
small signal parameter
Smolyan
spiral resistor
spiroylic acid
spun rayon
stake one's reputation on
statolith apparatus
status display area
steered wheel
stenomystax jengi
structured type
superciliary stripe
swigging
throhyoid
to take for a ride
Tricula
trilobe
turning gear motor
two-gun turret
uk open
uncowardly
unspring mass
vector verb
vertical tool post
vetical cross section of coal seam
viado
wall-track
we'le
wheately elms
wood alcohols