场致发射电子

45.The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Suns very center. It is here that is to be found the source of the energy that the Sun constantly pours out i

发表于:2018-11-28 / 阅读(480) / 评论(0) 分类 新概念优美背诵短文50篇

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(211) / 评论(0) 分类 英文杂志-Magazine

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(211) / 评论(0) 分类 英语小短文

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(320) / 评论(0) 分类 新东方背诵文选

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(233) / 评论(0) 分类 Scientific American(九)月

Wk 13 (28 March 1979) Nuclear Reactor Melts Down In The USAThis Week in HistoryDeadly radiation escapes from a US nuclear power plant, endangering nearly 2,000,000 people. In 1979, a reactor at the Three Mile Island nuclear power plant in Pennsylvani

发表于:2018-12-27 / 阅读(180) / 评论(0) 分类 英语新闻与报道—News and Reports

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-30 / 阅读(176) / 评论(0) 分类 考研背诵50篇

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(308) / 评论(0) 分类 2017年VOA慢速英语(十)月

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(306) / 评论(0) 分类 英语小短文

参考范文: This modern life As is shown in the above picture, people sit in front of the computer all day and night, even in their dreams theyre still playing computer games. Such thought-provoking phenomenon is, especially among young people, p

发表于:2019-01-08 / 阅读(209) / 评论(0) 分类 英语四级作文范文

[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(319) / 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(213) / 评论(0) 分类 TED演讲教育篇

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(233) / 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(222) / 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(190) / 评论(0) 分类 实用英语

Okay, Who Cut the Cheesee? 谁在放屁? A young man was visiting his girlfriend's parents for the first time. 有位年轻人第一次去拜访女朋友的父母亲。 He had been quite nervous about it, 他好紧张, and his nervousness was manif

发表于:2019-02-15 / 阅读(163) / 评论(0) 分类 经典双语笑话

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(196) / 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(204) / 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(225) / 评论(0) 分类 双语有声阅读

The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-02-25 / 阅读(185) / 评论(0) 分类 双语有声阅读
学英语单词
acanthopterygious
akavarr
antenna radiation efficiency measurement
augmentation principle
balcarce
bevill
beyond-the-horizon transmission
Birmā
black-boards
blat
bundle oneself up
burkinis
butyl boron dihydroxide
carbamine
chicken tractor
Chrysolithos
circumscribed polyhedron
contamination effect
cord carpet
Dagadzhik
deep hole processing
despatching
dock-charges
dominant cerebral hemisphere
Edmunds
embedded systems
fifth generation computer systems
flying-fish
football field
fordy
foundation nursery
genus Aquilegia
half way line
high-speed electropneumatic switch
holistic leisure
i-hole
inclusive-OR circuit
index of reference
indifferent business of bank
insectologers
intermediate film process
jillet
kata zonal metamorphism
key confirmation
kobrin
Lanczos method
local ncp
lyo-enzyme
make a pounce on
metachromosia
mildigram
modeling
monostabtle
moodless
Moyasta
multiple orifice nozzle
myelinates
Naffziger
negro-river
Netlish
Non-collateralized warrant
non-orienting force effect
Oud-Beijerland
outlet area of nozzle
outwings
pedagogize
pregnancy in rudimentary horn
pro-audio
producer's b risk
pronest
Quonset
Rabdosia secundiflora
re-named
rectilinear-Cartesian robot
reflex response
rough grinding machine
secondary radioactivity
see the lions
sequential determination
shallow convection
sharespace
ship bottom anticorrosive coating
shoulder grafting
Showa Guyot
slot insulating liner
soft-programming
steel wire mesh
stem maggot
Sugar Ray Robinson
suna-kaburi
surface-charges
television receiving field intensity
tensomodul
thin walled tube
tight coupling method
towed-target flight
up-gradable
veien
visual agnosia
wavelength conversion
women-work
wooden deck