中能电子绕射

efficiency-效率,功效 elaborate -精心计划的,详尽的 elastic -橡皮圈,松紧带 elbow -肘,肘部 elderly-较老的,年长的 elect -选举,推举 electrical -电的,电气科学的 electron-电子 electronic -电子的 elegant -优美的,文雅的 element -元素,要素 elementary-基本的,

发表于:2018-11-29 / 阅读(143) / 评论(0) 分类 用mp3背四级单词

16. The coming of the railways in 1830s____ our society and economic life. A. transformed B. transported C. transferred D. transmitted economy 经济 economic 经济的 economical 节俭的 economics 经

发表于:2018-12-01 / 阅读(111) / 评论(0) 分类 新东方赵丽词汇课堂

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(84) / 评论(0) 分类 英文杂志-Magazine

OK, great, we smell vibrations. How? All right? 好吧,我们闻到的是震动。怎么闻到呢? Now when people ask this kind of question, they neglect something, which is that physicists are really clever, unlike biologists. 当人们问这个问

发表于:2018-12-19 / 阅读(53) / 评论(0) 分类 TED演讲教育篇

This is Scientific American's 60-Second Science. I'm Sophie Bushwick. Got a minute? The shortest distance between two points may be a straight line, but try telling that to electrons: when current flows down a wire, these particles zig and zag, movin

发表于:2018-12-24 / 阅读(100) / 评论(0) 分类 Scientific American(九)月

Three Scientists Win Nobel Prize in Chemistry Three scientists have won the Nobel Prize for chemistry for their work to simplify and improve the imaging of biomolecules. 三位科学家因为在简化和改善生物分子成像方面的成就获得了诺

发表于:2019-01-03 / 阅读(178) / 评论(0) 分类 2017年VOA慢速英语(十)月

By Scott Bobb Johannesburg 22 June 2007 The former president of Botswana is flying to Lesotho Monday to mediate a dispute over parliamentary seats that led to attacks on political leaders and a nighttime curfew. Correspondent Scott Bobb spoke with Ke

发表于:2019-01-11 / 阅读(154) / 评论(0) 分类 2007年VOA标准英语(六月)

By Zulima Palacio Washington, DC 19 December 2006 watch US Energy Security report A group of leading U.S. businessmen and former top military commanders has called on the White House and Congress to reduce America's dependence on oil from overseas,

发表于:2019-01-12 / 阅读(129) / 评论(0) 分类 2006年VOA标准英语(十二月)

[0:0]efficiency效率,功效 [0:12.1950]elaborate elastic elbow elderly精心计划的,详尽的 橡皮图,松紧带 肘,肘部 较老的,年长的 [1:2.6076]elect electrical electron选举,推选 电的,电气科学的 电子 [1:41.1372]electronic elegant element elementary [2:36.2790]el

发表于:2019-01-16 / 阅读(162) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

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(73) / 评论(0) 分类 TED演讲教育篇

AGRICULTURE REPORT December 17, 2002 — Irradiated Meat This is the VOA Special English Agriculture Report. The United States government has approved methods of destroying bacteria in meat by using r

发表于:2019-01-30 / 阅读(91) / 评论(0) 分类 农业与发展

By Marlene Smith Vienna 07 March 2006 The International Atomic Energy Agency resumed closed talks Tuesday on Iran's nuclear program in an effort to avoid escalation in the stand-off with the Islamic R

发表于:2019-01-31 / 阅读(126) / 评论(0) 分类 2006年VOA标准英语(三月)

A-bomb, atomic bomb 原子弹 absorption 吸收 to accelerate 加速 accelerating chamber 加速室 accelerator 加速器 synchrocyclotron 同步回旋加速器 synchrotron 同步加速器 betatron 电子

发表于:2019-02-03 / 阅读(95) / 评论(0) 分类 英文语法词汇

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(96) / 评论(0) 分类 实用英语

Background carrier 本底载流子 Background doping 本底掺杂 Backward 反向 Backward bias 反向偏置 Ballasting resistor 整流电阻 Ball bond 球形键合 Band 能带 Band gap 能带间隙 Ba

发表于:2019-02-05 / 阅读(86) / 评论(0) 分类 实用英语

As physicists built bigger and more ambitious machines, 随着物理学家建造越来越大、越来越雄心勃勃的机器, they began to find or postulate particles or particle families seemingly without number: 他们开始或推断出似乎永无

发表于:2019-02-17 / 阅读(55) / 评论(0) 分类 万物简史

What this means in practice is that you can never predict where an electron will be at any given moment. You can only list its probability of being there. In a sense, as Dennis Overbye has put it, an electron doesnt exist until it is observed. Or, pu

发表于:2019-02-17 / 阅读(52) / 评论(0) 分类 万物简史

Finally, in 1926, Heisenberg came up with a celebrated compromise, producing a new discipline that came to be known as quantum mechanics. At the heart of it was Heisenberg's Uncertainty Principle, which states that the electron is a particle but a pa

发表于:2019-02-17 / 阅读(56) / 评论(0) 分类 万物简史

Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom

发表于:2019-02-17 / 阅读(60) / 评论(0) 分类 万物简史

The Microscopic Technique Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible light microscope late in the sixteenth cen

发表于:2019-02-25 / 阅读(82) / 评论(0) 分类 双语有声阅读
学英语单词
air-seasoned timber
allomorphy
anagalligenin
androgenic haploid
antiheparin
audiovisual work
auger process
Bacillus indigogenes
Bendemeer
benzylmalonic acid
bernkopf
biographing
brekkie,brekky
casing bowl
catatonia features specifier
clasp boat
common problems
counter-lateral septum
countersniper
crapand
Date of Issue of Bill of Lading
day dream
defended terrance
diamond airfoil
diphenylbutylpiperidines
double elliptic geometry
doughy sensation
EAF (equivalent availability factor)
Enteryperpathy
ethnic national sovereignty
ex-stepdads
expand and contact freely
fachan
faucial
feurle
find favor with sb
four-headed capstan
gades
galoshes
gauge bar
give permission
gnathosomal groove
Godkowo
grain casting
homerkin
homogeneous number
hotlier
ignore uppercase
infra-red
integrating water sampler
king bolt bush
laser pulp cautery
leadbitters
leashing
machendra
Magill band
marshalling-departure track
michigan model
microcinematography
min max system
minilateralism
Mossuril
Mulderangst
Natal Bk.
not interesting or exciting
orbital maneuvering system
phototropic material
physnamy
plastic reinforcement
population shifts
righthelmet
ruler test
saleable product
Scottsonizing
selenoenzyme
solar azimuth angle
spectral transmission ratio
spiral scanning
stelocyttarous
stereo-mosaic
streufert
sub-channel signal
sudoxicam
syllable structure
tail gate end pillar
Taiyeh Lake
task activation
Taylor's equation
three-db coupler
ticket-holders
tommy logge
touch-down
twinning lamella
umuofia
university-rankings
utero-sacral promontory fixation
Van Duuren code
Warham, William
weightless deposit
ysalamir
zero-shifting