冷原子非色散原子萤光光谱法

A Century of Memories(1940-1949)

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(141) / 评论(0)

疯狂英语2003年

英语听力：自然百科大迁徙之繁衍生息 Need to Breed—18

Here and now, cub and cub, pound for pound. The bodies of the falling litter the battle field. The females approach to the victorious males willingly, and with a discerning eye. They gravitate to the i/ storm, knowing that only the fittest gladiators

发表于:2018-12-03 / 阅读(102) / 评论(0)

自然百科2011年

赖世雄学英语第四册 lesson 4

[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(63) / 评论(0)

赖世雄学英语第四册

雅思听力场景词汇:化学词汇

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(114) / 评论(0)

雅思英语

电信专业英汉词典d2

Digital Access Protocol(DAP) 数字访问协议 Digital Volt Meter(DVM) 数字电压表 Digital TeleVision(DTV) 数字电视 digital circuit 数字电路 digital 数字的 data safety

发表于:2019-01-03 / 阅读(62) / 评论(0)

电信英语

电信专业英英词典D-6

Direct Inward Dialing (DID) DID is PBX-to-central office trunks that allow incoming calls to a PBX to ring specific stations without attendant assistance. DID greatly reduces the number of required co

发表于:2019-01-03 / 阅读(76) / 评论(0)

电信英语

英语晨读：这个时代的悖论

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(47) / 评论(0)

英语美文

Paradox of Our Times

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(74) / 评论(0)

阅读空间

美国国家公共电台 NPR Christopher Marley's Dead Things

SCOTT SIMON, HOST: You can forget what you thought you knew about taxidermy. Oregon artist Christopher Marley transforms poisonous snakes, tropical fish and exotic insects into works of art. Now 400 of his creatures are on display in a major exhibiti

发表于:2019-01-16 / 阅读(76) / 评论(0)

2018年NPR美国国家公共电台1月

TED演讲:为什么玻璃是透明的(2)

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(73) / 评论(0)

TED演讲教育篇

英语中表示倍数减少的方法

(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. The hydrogen atom is near1y l6 times as

发表于:2019-01-17 / 阅读(60) / 评论(0)

英语口译

表示倍数减少的翻译法

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(71) / 评论(0)

英语口译

经济学人82:基础物理反物质研究突飞猛进

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(52) / 评论(0)

经济学人科技系列

万物简史第141期:基本物质(13)

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(60) / 评论(0)

万物简史

万物简史第147期:基本物质(19)

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(61) / 评论(0)

万物简史

《俞敏洪GRE红宝书》朗读-a19

chiromancy n．手相术 chirp v．(鸟或虫)唧唧叫 chivalrous adj．武士精神的，侠义的 chivalry n.骑士制度 choleric a．易怒的，暴躁的 chop n．(用斧头等)砍，(风)突然改

发表于:2019-02-01 / 阅读(76) / 评论(0)

GRE英语

IBM制作出世界上最小的电影

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(59) / 评论(0)

英语新闻

“笨手笨脚”怎么说

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(59) / 评论(0)

实用英语

【跟着美剧练发音】美剧美语834期

PENGUIN:What continent （大陆）is this ? ZEBRA:Manhattan（曼哈顿）. PENGUIN:Hoover Dam（胡佛水坝/惨）!Were still in New York.Abort（终止计划）.Dive（跳水，此处指下潜）!Dive!Dive. ZEBRA:Hey.You in the tux（燕尾服）

发表于:2019-02-16 / 阅读(75) / 评论(0)

跟着美剧练发音

如何表达心事重重?

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(72) / 评论(0)

英语口语

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