取代原子

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(459) / 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(399) / 评论(0) 分类 赖世雄学英语第四册

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(496) / 评论(0) 分类 雅思英语

We don't have any more pens, can we substitute pencils. 已经不再有钢笔了,可用铅笔来代替吗? substitute表示以...代替。注意上句中substitute后的pencils不是被替换的,而是用来替换pens的。如果要明确表明用

发表于:2018-12-25 / 阅读(364) / 评论(0) 分类 蒋健棠英语实用句子

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(426) / 评论(0) 分类 Scientific American(三)月

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(311) / 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(385) / 评论(0) 分类 阅读空间

Could you cover for me on Tuesday? I'm not coming back until Wednesday. 你星期二可以帮我代班吗?我要到星期三才回来。 Sure. What's up? 当然可以,有什么事吗? He substituted for his colleague who was ill. 他为生病的同

发表于:2019-01-15 / 阅读(354) / 评论(0) 分类 旅游英语口语就该这么说

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(419) / 评论(0) 分类 TED演讲教育篇

1.People will come to expect that injured or diseased organs are meant to be repaired from within,in much the same way that we fix an appliance or automobile: by replacing the damaged part with a manufacturer-certified new part. 人们将开始期望受

发表于:2019-01-17 / 阅读(400) / 评论(0) 分类 大学四六级阅读

(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(440) / 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(454) / 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(361) / 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(381) / 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(390) / 评论(0) 分类 万物简史

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(394) / 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(365) / 评论(0) 分类 实用英语

MILAN, Jan. 12 (Xinhua) -- Inter Milan head coach Andrea Stramaccioni said his side are rediscovering their balance following their 2-0 victory over Pescara in the Italian Serie A league at home on Saturday. It went well, because the most important t

发表于:2019-02-11 / 阅读(495) / 评论(0) 分类 英语新闻

(91) A: Are you ready to place your order now? B: The order will be mailed to you next week. A: Is it going to the head office? B: No, I think it is going to be mailed to your local branch. A:你们准备好下订单了吗? B:下星期就寄给你

发表于:2019-02-11 / 阅读(371) / 评论(0) 分类 实用英语

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(376) / 评论(0) 分类 英语口语
学英语单词
.kmp
airplane reactor
antihypertensive
authalic equal area latitude
auto-clean strainer
axinost
balsameum
basket purchase
bayon
bequit
BNP Paribas
Boynton Beach
bryden
ceptions
chadwyck-healey
choregraphed
circulatory systems
comely maidens
common kingsnakes
conductance variation method
coniosis
constitute a serious difficulty
Cortef-F
cracked-pot sound
cylindraceum
Dama dama
damion
decorate the house
deprensible
deradicalise
discrete-time filter
divorc't
dominandi
downies
dudar
electro-optic transducer
erosa erosa
ex d.
external bus instruction
fair line
falls to
faunalpedturbation
Feeder Table
fully reducible matric algebra
gas-bearing
gatsha
Ghurian
gobi deserts
ground truth sites
Hanawasher
harsh arc
high pressure DTA apparatus
hyok
impatiens balsamina L.
implication imply
induced air oxidation
ischaemic stroke
kinnors
knackeredness
Konkani
La Nava de Santiago
lightning surge wave
liquid-gravity differentiation
lochiorrhagia
Macchivello
maudlinworts
methanol fuel cell
multi-electrode valve
non-rejection region
off-energy
official tariffs
oscillating arm
oughties
Perineurioma
photochemical yield
PNAVQ
potassic syenite
prece
public praise
raise sb's hopes
Rattus norvegicus
reference beam method
reset read operation
rifamp(ic)in
rig in bow planes
scissors gait
simplified model
stereum purpureum persoon
stonefish stings
subtropical class refrigerator
superconducting gravimeter
traditional authority
trahandilla
transchromosomal
two-side plough tripper
unlawful search
unshrank
vizy
vortioxetine
whistling face syndrome
wooden screen
Zemst