束缚截面

A Century of Memories (1940-1949) On the first Sunday in December 1941, Americans were doing what Americans did on any normal Sunday.

发表于:2018-11-28 / 阅读(196) / 评论(0) 分类 疯狂英语2003年

[00:00.00]Lesson 4 Atom [00:01.95]原子 [00:03.89]The really strange thing about atoms is that most of us will never see one. [00:08.87]原子最奇特之处在于绝大多数人永远也无法看到它。 [00:13.84]Atoms are so small that it's impo

发表于:2018-12-08 / 阅读(108) / 评论(0) 分类 赖世雄学英语第四册

Its five years old. 它五岁了 'Now remember boys and girls,' said the science teacher. 'You can tell a tree's age by counting the rings in a cross section. one ring for each year.' Tom went home for dinner and found they were having a jelly roll f

发表于:2018-12-18 / 阅读(106) / 评论(0) 分类 TED演讲国际问题篇

雅思听力场景词汇:化学词汇 在雅思听力考试场景中,化学相关的场景的词汇较为生涩,平时生活中可能也运用得比较少,以下的词汇供大家参考喔。 molecule 分子 particle 粒子 ion 离子 particle

发表于:2018-12-19 / 阅读(160) / 评论(0) 分类 雅思英语

Where can I transfer to the uptown express? 在哪里可以转乘去住宅区的快车? You can change trains at Xinsu Station. 你可以在新宿站换车。 Cross the road and take a north bound No. 38 bus to the Central Hotel 穿过马路到对面

发表于:2018-12-27 / 阅读(91) / 评论(0) 分类 旅游英语口语就该这么说

This is scientific Americans 60 Second Science. I'm Steve Mirskey. Got a minute? The lure of gold can be electric to some people even though the element is chemically inert on the large scale. But the researchers from Georgia Tech report that down at

发表于:2019-01-04 / 阅读(155) / 评论(0) 分类 Scientific American(三)月

面对面的交流就是 face to face,许多人认为这样的沟通效果和电话上或网上联系是不一样的。 例句 I've been in touch with my niece, who was born in South America, for years but we have never met face to face. One way of

发表于:2019-01-08 / 阅读(134) / 评论(0) 分类 英语日常口语

We have bigger houses and smaller families; more conveniences, but less time; we have more degrees, but less common sense; more knowledge, but less judgement; more experts, but more problems; more medicine, but less wellness. We have multiplied our p

发表于:2019-01-08 / 阅读(86) / 评论(0) 分类 英语美文

We have multiplied our possessions, but reduced our values. We talk too much, love too little and lie too often. We've learned how to make a living, but not a life; we've added years to life, not life to years. We have taller buildings, but shorter t

发表于:2019-01-11 / 阅读(120) / 评论(0) 分类 阅读空间

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(115) / 评论(0) 分类 TED演讲教育篇

(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g. The hydrogen atom is near1y l6 times as

发表于:2019-01-17 / 阅读(103) / 评论(0) 分类 英语口译

英语中表示倍数减少的表达方法(一)a is n times as small (light,slow,)as b. a is n times smaller (lighter, slower,) than b. 以上两句均应译为:a的大小(重量,速度,)是b的1/n[或a比b小(轻,慢,)(n-1)/n]. e.g

发表于:2019-01-17 / 阅读(121) / 评论(0) 分类 英语口译

Science and Technology Fundamental physics Antimatter of fact 科技 基础物理 反物质研究突飞猛进 Researchers at CERN have held on to anti-atoms for a full quarter of an hour 欧洲核子研究中心的科研人员让反原子颗粒存在时

发表于:2019-01-26 / 阅读(93) / 评论(0) 分类 经济学人科技系列

Fortunately more sober types were at work elsewhere. In 1808, a dour Quaker named John Dalton became the first person to intimate the nature of an atom (progress that will be discussed more completely a little further on), and in 1811 an Italian with

发表于:2019-01-29 / 阅读(105) / 评论(0) 分类 万物简史

The structure of atoms and the significance of protons will come in a following chapter, so for the moment all that is necessary is to appreciate the organizing principle: hydrogen has just one proton, and so it has an atomic number of one and comes

发表于:2019-01-29 / 阅读(110) / 评论(0) 分类 万物简史

今天我们要学的词是be bound to。 Be bound to, 一定会。巴勒斯坦向联合国提交申请,希望成为正式会员国。但是, Analysts say the Palestinian bid is bound to fail because the United States has threatened to use its ve

发表于:2019-02-04 / 阅读(113) / 评论(0) 分类 英语单词荟萃

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

发表于:2019-02-04 / 阅读(104) / 评论(0) 分类 英语新闻

俗话说:一母生九子,九子各不同。这句话在我邻居家孩子的身上体现得淋漓尽致。大女儿心灵手巧,做什么像什么;而二女儿却刚好相反,总是笨手笨脚。All thumbs就用来形容她这种笨手笨脚

发表于:2019-02-06 / 阅读(108) / 评论(0) 分类 实用英语

Pre-Listening Vocabulary observation: something that you see cross section: a view of the inside of something after a cut has been made across it hold true: remain a fact or truth even in other situations ideal: suitable sap: fluid (sugar and mineral

发表于:2019-02-08 / 阅读(342) / 评论(0) 分类 Facts-事实

1.心事重重 some thing weighs heavily on ones mind The boss is quite down these days. He seems to have something weighing heavily on his mind. 老板这几天沉默寡言,看起来好像是心事重重的 2.苦苦哀求 press ones suit She press

发表于:2019-02-19 / 阅读(121) / 评论(0) 分类 英语口语
学英语单词
according with
aeroplane shed
all-clear signal lamp
anathematisation
antimony 124
attention disorder
autogiro autogiro
balance-sheet
ballee
Biets's bands
blowoff
bosum bird, bosumbird
bracket stud and nut
BWRA
cage cross
cakile maritimas
calorimeter for gaseous and liquid fuels
cargo segregation
colcothar
consumer-advocacy
cross-checker
Cyanthomastix hominis
cytherelloidea feilunga
debolt
deposit from employess
diphthongisation
e-mentoring
fall short of sb's expectations
false economy
fiber cable run
fire irons
first order approximation
five-tone scale
fly to the sky
fox hole
franco wagon
ghost relic
groove for superior longitudinal sinus
hamon transfer
have with
hermaphroditish
high doping effect
home-grown
horse as draft and saddle animals
hydro-elastoplastic medium
hypobatholithic stage
input-limited
interactive transaction program
Iodatol
ioglicic acid
Jay Gould
keep one's hand in
kss
Kurundvad
leis-
leveling base
maternal love
mathematical statisticians
microcracks
micropolitically
misoperates
Morskaya Matuga, Ostrov
myoblastic tumor
numeric operand
optical double
paper-lined cell
parametric correlation
permanent bench mark(p.m.b)
pessary form
planetary orbiter
Platygaster
port buckler
preoral cavity
pyrotechnical dispenser
radiate carpal ligament
rattle the sabre
receptor-defective
riding-school
scaling dimensionality
scatter rate
shared multiprocessing
short circuiting arc welding
specific power plant consumption
spectral reflectance of arboreal species
St-Benoît, Arrondissement
stand truth on its head
stannic hydride
sterncastles
sub exciter
tetrahexa-hedron
thiocarbamazine
threaded valve stem
tonal key
trial running expenses
unqualifiedness
variable-sized
vegetable oil cleaner
voltage overshoot
von Euler
wikstroemia effusa rehd.
Xenopsylla
zero trimmer