电子杀蚊器

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(205) / 评论(0) 分类 用mp3背四级单词

Many people regard summer as a time for relaxing, eating ice cream, and...ouch! I just got bitten by a mosquito! For centuries, people have been searching for effective ways to prevent mosquito bites. What they have been looking for is mosquito repel

发表于:2018-11-30 / 阅读(196) / 评论(0) 分类 常春藤生活英语

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(224) / 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(146) / 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(108) / 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(170) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. April 25th was World Malaria Day. The mosquito-borne disease is still one of the biggest killers in developing countries with a death toll of a million

发表于:2018-12-24 / 阅读(162) / 评论(0) 分类 Scientific American(四)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(235) / 评论(0) 分类 2017年VOA慢速英语(十)月

Kurt Achin It is rainy season in Southeast Asia, and the region is facing its annual battle with dengue fever and other mosquito-borne diseases. The World Health Organization says such diseases are a

发表于:2019-01-11 / 阅读(148) / 评论(0) 分类 VOA2004(上)--国际时事

Under UV light, this mosquito larva reveals a red fluorescent marker in its nervous system, causing eyes and nerves to glow. The marker's presence tells the researchers in Riehle's team that this individual carries the genetic construct rendering it

发表于:2019-01-13 / 阅读(139) / 评论(0) 分类 VOA标准英语2010年(七)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(238) / 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(136) / 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(170) / 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(160) / 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(146) / 评论(0) 分类 实用英语

A Chinese entomologists has found a giant mosquito with a wing span of 11.15 centimeters. Zhao Li, curator of the Insect Museum of West China, said the mosquito, which belongs to the world's largest mosquito species Holorusia mikado, was found in Aug

发表于:2019-02-14 / 阅读(130) / 评论(0) 分类 2018CRI中国国际广播电台

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(120) / 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(128) / 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(124) / 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(161) / 评论(0) 分类 双语有声阅读
学英语单词
adenoassociated
admissible condition
affectionado
Alsatian
anticonservation
archetypically
Are you looking for a permanent position
Ascoidium
atmospheric electric conductivity
atom smashing
attendant ship
autoprogramming
bacteroides nodosus
bifrontal
bill mauldins
black leg of cabbage
blackfaced
bumper to bumper
claim for tax refund
connected directed graph
crank brace
culicide
data multiplexer
datum dimension
dealing with
digital system design
distribution rates
electric PID governing
error in duplication
EURV
excommunicable
fan lip flap
feature creature
fenocyclinc
Fernão Veloso, B.de
fluid
freeingly
Gentianopsis thermalis
genuine partnership
greasy fabric
grounding and short-circuiting equipment
hussive
in-charges
indefinible
joshes
kalaite
law of international transfer of technology
liquid fertilizer applicator
lock bolt
lush life
maaa
mad man
Magnesio-Anthophyllite
mercurating
motherlike
moving conductor loud-speaker
nonfungible thing
nonrefoulment
noooos
npn junction transistor
oceany
ostichthys japonicus
overfeminine
potato witches-broom virus
progressive in time
published material
reconstructed turquoise
regeneration loss
restrictive flow-regulator
rhop-
rotary disc meter
routing domain
ruptured intervertebral discs
saddle type pin boss
self-pollinate
shielding cage
shoving hole
software test system
srsososts-s
sulpha drug
surveying astrophysics
sweeping line
tern schooner
the triumph of love
themes
thierno
thomas campion
ticky tacky
token type
trace controller process
transferred malice
tread thickness
true condition
uk border
upgird
valid order
validity of assumptions
vascular malformation of spinal cord
water foaming method
weight per unit length
westour
zinc dithiofuroate