稳定原子

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(347) / 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(234) / 评论(0) 分类 赖世雄学英语第四册

Unit 1 [00:27.95]The donkey and the pekinese [00:32.71]There was a merchant who had a Pekinese dog. [00:37.98]It was like a toy. [00:41.14]The Dekinese lived in the merchant's house, [00:45.90]slept on his bed, sat on his lap and lived an easy life.

发表于:2018-12-13 / 阅读(449) / 评论(0) 分类 小学综合英语6A

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(335) / 评论(0) 分类 雅思英语

Covalent bond - a strong bond between atoms formed by sharing outer electrons. When an atom has 8 outer electrons it is stable. Those which naturally have 8, like neon and argon gasses are quite unrea

发表于:2019-01-03 / 阅读(334) / 评论(0) 分类 医务英语

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(308) / 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(196) / 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(257) / 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(282) / 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(306) / 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(282) / 评论(0) 分类 英语口译

The Nucleus Don: A guy walks into a bar, and sits down next to an electron . The electron has two empty beers in front of him, and was working on a third. My life is a worst, says electron . I just got fired from my job, my dog bit me, my wife left w

发表于:2019-01-26 / 阅读(244) / 评论(0) 分类 英语听力文摘 English Digest

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(247) / 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(265) / 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(272) / 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(267) / 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(239) / 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(261) / 评论(0) 分类 英语口语

三、其它相关常用词(组) 1. 主章开头 图表类型:table; chart; diagram; graph; column chart; pie graph 描述:show; describe; illustrate; can be seen from; clear; apparent; reveal; represent 内容:figure; statistic; number; pe

发表于:2019-02-19 / 阅读(347) / 评论(0) 分类 雅思英语

Fourteen injured people sent to Taining County hospital in the eastern province of Fujian are now in a stable condition. Doctors say most of the injured were treated for bone fractures. Three of them are severely injured with multiple broken bones an

发表于:2019-02-21 / 阅读(272) / 评论(0) 分类 cctv9英语新闻2016年
学英语单词
acetodehydrogenase
Aks-e Rostam
Arteriae ileales
auroes
automatic falls release mechanism of survival craft
Azy
be disbanded
birthers
bonelike
bouch
bunchiest
cam follower rocker shaft
Cassia pulpa
chaebol
Changlun
Chlamydosaurus kingi
co-reside
comprehensive preventive health measures
convergence half
cross-utilizing
custos
deep cuts
diagonal shaving
dominating center
dri
drum processor
duss
electron mechanics
electronogram
emporiatrics
fermi-dirac- sommerfeld velocity distribution law
flavobacterium lutescens
Gentiana pedata
genus Bemisia
genus serratias
gliding growth
Half astern starboard!
herdmate average
Huacullani
hydrostatical sterilization
infratemporal fossa syndrome
ingot scales
Internet File System
iusacell
Ixodes neotomae
king's queen's peace
Lacroix
legendization
loose change gear
main pressure regulator valve
medgyessies
metaplasts
metra-
milk-punch
minimum gap
mooties
multipactin
Muscle-balance
mustard oil acetic acid
myxotheca
Neanderthals
news-books
Ngalo
nmed
noise-gated AGC
non-relativistic
nonpapal
Ornithogalum thyrsoides
passage aisle
permanent dominant
polygordius
preexercise
principal-factor solution
reactive power
reclin-
recurrent appendicitis
renal tuberculosis
Roatelo
rock doves
royalactin
SAMOS
schlagers
sea water strainer
seesu
shell-and-pin feed
Shelter-wood
silt deposit
slice structure
snoggings
soundchecking
stand in sb's way
standard amorphous specimen
stokesia
Straits Used for International Navigation
superreflection
Syngamis
tape safes
Towamba
tractor-maker
wave directional spectrum
without jurisdiction
ylang-ylang oil