电子发射部件

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(150) / 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(125) / 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(92) / 评论(0) 分类 英文杂志-Magazine

1. automobile,汽车。 eg:The parts of an automobile are standardized. 汽车零件是标准化了的。 2. emission是emit的名词,表示散发,散发物。 eg:The emission of gases such as carbon dioxide should be stabilized at their present

发表于:2018-12-18 / 阅读(64) / 评论(0) 分类 蒋健棠教你听英语广播

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(61) / 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(110) / 评论(0) 分类 Scientific American(九)月

75.购车 常用应急场景 范例一:A green car M: Lucy, what are your priorities when buying a car? W: I guess the first thing is the price, the second is the size, and of course the color will play a role too. But I have to be honest. It is our todays r

发表于:2018-12-26 / 阅读(62) / 评论(0) 分类 白领口语应急

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(185) / 评论(0) 分类 2017年VOA慢速英语(十)月

Ecological balance - astable balance in the numbers of each species in an ecosystem. In the ecosystem of the mouth this balance is brought about by competition and cooperation between the different or

发表于:2019-01-03 / 阅读(100) / 评论(0) 分类 医务英语

[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(173) / 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(83) / 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(97) / 评论(0) 分类 农业与发展

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(106) / 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(105) / 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(95) / 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(67) / 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(59) / 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(63) / 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(70) / 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(95) / 评论(0) 分类 双语有声阅读
学英语单词
a woman's right to choose
action item
altiverruca longimandible
amine precursor uptake and decarboxylation
anchor coat
attendance law
AuPT
automatic dose dividing apparatus
Ban Ang Thong
bilidiene
bomb-makers
bullennail
bureaucratic politician
capstan screws
ceruminal
chanteius contiguus
close etching
colo(u)r subcarrier
combined radiation
continental plateau
cornopteris decurrentialata
customer representative
deipnophobia
Deximafen
dive brakes
dont mention it
drum freezing
dust-covered
dysphoria during pregnancy
eczema vaccinatum
electronic card
eotetranychus orientalis
Esporões
exam
explosive sound unit
first maxilla
forfeiture of bond
four-bus
framing anchor
function of confluent type
generally
given rise to
granite
grey blibe
hay-conditioner
intermediate cementum
intolerably
linguistic probability
lock-and-key
maypole
melanins
mesophere
metrotomy
mobile allowance
moveltipril
myelin staining
Newtonmas
Nicoque
nonlesional
nonpublishing
nonsynchronous
number of transport bill
oblique-flow fan
Octoberish
off-specular peaks
one-bit memory
otoy
paciable
PAGEDEF
paper pulp
poikiloblastic
Point Four Program
pon-genicular occipital spike
product and marketing planning
prompt goods
radial-acceleration
reasons of impunity
retackle
rotary refrigerant compressor
rotating stand
run-in-target
S-oxodiallyl sulfide
sampling by variables
scatter reloading pattern
simpla
sitol
small-mindednesses
special interrogatories
spherical charge blasting
strategist
superfine antimony power
tachometres
transantral
tri-faced
tribunician
twech
twoes
unified interpretation
unnova
vhf/uhf direction finder
Warner Lakes
waterboardings