光敏电子管

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(178) / 评论(0) 分类 用mp3背四级单词

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(126) / 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(90) / 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(144) / 评论(0) 分类 Scientific American(九)月

[00:06.37]Some people cannot see all colors correctly. [00:10.92]They cannot see all the colors in a rainbow or a sunset. [00:16.40]They cannot tell if the meat they are cooking is done or if a fruit is ready to be eaten. [00:23.61]Poor color sight a

发表于:2018-12-26 / 阅读(97) / 评论(0) 分类 美国英语听力80篇

Helen turned on her flashlight. Nothing happened. The light did not come on. There was no light. What was wrong with her flashlight? She unscrewed the top of the plastic flashlight. Helen took the two batteries out of the plastic tube. She looked at

发表于:2019-01-02 / 阅读(115) / 评论(0) 分类 超级简单英语阅读

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(211) / 评论(0) 分类 2017年VOA慢速英语(十)月

Yvonne: This is 6 Minute English, I'm Yvonne Archer and Alice has kindly joined me for today's programme. Hello Alice. Alice: Hi Yvonne. Yvonne: Now Alice, how do you get around London? Alice: Ooh by bus, bicycle and usually the Tube. Yvonne: Aha, an

发表于:2019-01-07 / 阅读(204) / 评论(0) 分类 六分钟英语

BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn

发表于:2019-01-16 / 阅读(248) / 评论(0) 分类 伦敦生活

[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(207) / 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(112) / 评论(0) 分类 TED演讲教育篇

Cats And Colors You can look at that quilt your cat is curled up on and see a patchwork of greens, blues, and yellows. Your cat, however, cannot see color variation in the quilt. And here is why. Both humans and cats depend on the back layer of the e

发表于:2019-01-22 / 阅读(130) / 评论(0) 分类 英语时差8,16

Helen turned on her flashlight. Nothing happened. The light did not come on. There was no light. What was wrong with her flashlight? She unscrewed the top of the plastic flashlight. Helen took the two batteries out of the plastic tube. She looked at

发表于:2019-01-24 / 阅读(121) / 评论(0) 分类 英语第1级听力-English Level 1

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(143) / 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(134) / 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(126) / 评论(0) 分类 实用英语

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(91) / 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(104) / 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(102) / 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(139) / 评论(0) 分类 双语有声阅读
学英语单词
acanthurus nubilus
advantage, actual mechanical
and/or stack register
ankle-biter
announcement of credit regidtration
anthracoxen
anti-structure defect
antigelation effect
apropriations status report
artificial lighting transition
Aubigny-en-Artois
berthing pier
blecch
book-by-mail service
braille resources
by pass vavle escape pipe
candy flip
Cardiganshire
China National Tea Export Corporation
Cichorium intybus
cold plate
compile link and go
complete system of neighborhoods
contact electrification
cpcps
crosslike
density of line of magnetic force
Dermosyphilography
diesel engine dynamometer
diplazium latifrons
door operating handle
double dichotomy
elastic reverse prestrain method
element of polyphase circuit
elias howes
embedded computer
equivalent diode voltage
fail-open
flex abrasion
fresh water marsh
genus Elephantopus
gp180
Hamois
heteropolar generator
hydrostatic bath
hypoeutectic iron carbon alloy
implementation period of new technology
in a sort
indicial notation
indirect charge
inseminating
jumelles
L. D. A.
legal suit
legasov
letter lock
libya (libia)
limited fee
literary pirate
magnesium iron
mailsack
make a description of
mat burn
measure of reinstatement
Meptin
middletone, middle tone
monitor I/O queue
mylonitic structure
Ndande
neurtrality
non-plasma-specific enzyme
Northern Dvina River
one-colour
piershed
plethoric sterility
plotid
pork barrels
postmodernizations
potato steamer
prediction period
protected prisoner of war
real law
recelebrates
repeat mating
reticulocerebellar fibers
salicetums
science foundation
Sleeping Bear Dunes
small panda
stability standard
subcompartmentalization
tice
trade reciprocity
transmission synchromesh
transmutationisms
twenty-dollar
unistat
universal bender
Universal Polar Stereographic projection
vowels recognition
water-cooleds
work off steam