un. 分子束
[网络] 分子束磊晶

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

发表于:2018-12-24 / 阅读(157) / 评论(0) 分类 Scientific American(四)月

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(179) / 评论(0) 分类 不择手段背单词

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

发表于:2019-01-08 / 阅读(186) / 评论(0) 分类 Scientific American(十)月

1. Authorities in Utah say they found no signs of six trapped miners when they lowered a camera down to where they think the men are located. This is their second effort to make contact with the men. Yesterday a microphone was lowered down to a separ

发表于:2019-01-08 / 阅读(235) / 评论(0) 分类 美联社新闻一分钟2007

[00:00.00]change one's mind anyhow argument misunderstanding [00:05.09]改变注意 ad.不管怎样 n.辩论 n.误会,误解 [00:10.19]ashamed Cincinnati counter disappointment [00:14.72]a.惭愧,害臊 n.辛辛那提(美国城市) n.柜台 n.失望;

发表于:2019-01-08 / 阅读(365) / 评论(0) 分类 高中英语词汇

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(248) / 评论(0) 分类 英美文化

This is the VOA Special English Health Report. Governments, businesses and other groups have promised to add three billion dollars to the fight against malaria. The promises came last week at a meeting at the United Nations in New York. The money wi

发表于:2019-01-11 / 阅读(192) / 评论(0) 分类 VOA慢速英语2008(十)月

Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如,美国开拓西部的过程给美国语言增添了不少色彩。可

发表于:2019-01-14 / 阅读(261) / 评论(0) 分类 美国习惯用语

A: I'd like to order a restock on my minibar. B: You finished everything in there, sir? A: Absolutely everything. B: What would you like to order? A: Three bottles each of Perrier and Jim Beam. B: Uh-huh. What else do you want? A: The apples were gre

发表于:2019-01-15 / 阅读(208) / 评论(0) 分类 英语情景对话-旅馆

A: I need my minibar restocked. B: Everything is gone, sir? A: There's not a drop left of anything. B: Is there anything in particular you'd like? A: Yes, the Perrier and the Jim Beam hit the spot. Let me have three more of each. B: Got it. Anything

发表于:2019-01-15 / 阅读(187) / 评论(0) 分类 英语情景对话-旅馆

A: Hi. My minibar is empty. B: You already finished off everything, sir? A: I finished off everything. B: Would you like anything in particular? A: The Perrier and the Jim Beam. Let me have three more of each. B: Beam and Perrier. Anything else, sir?

发表于:2019-01-15 / 阅读(192) / 评论(0) 分类 英语情景对话-旅馆

A: Hello! How do I restock my minibar? B: You've drunk everything, sir? A: I finished it all. B: Do you want the whole minibar, or just certain items? A: Send me up three bottles each of Perrier and Jim Beam. B: That's three Jim Beams and three Perri

发表于:2019-01-15 / 阅读(200) / 评论(0) 分类 英语情景对话-旅馆

A: My minibar is completely empty. B: Everything in that minibar has been consumed, sir? A: Everything's gone. B: Is there anything special you'd like? A: Just bring me three bottles each of Jim Beam and Perrier. B: Okay, sir. Three of each. Would yo

发表于:2019-01-15 / 阅读(204) / 评论(0) 分类 英语情景对话-旅馆

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(211) / 评论(0) 分类 2016年Scientific American(十)月

smirk vi.傻笑; 假笑着说; grin v. 露齿而笑,咧着嘴笑 beam vi. 照射;堆满笑容 laugh v.哈哈大笑 register vt.表示,表达; (感情) 流露; 如果单纯从中文的翻译还是很难深刻理解这几种笑的不同,可以

发表于:2019-01-17 / 阅读(164) / 评论(0) 分类 卡卡课堂早餐英语

It's time to bring total strangers together in a game we're calling Walk the Plank. 该把陌生人们聚到一起了 通过我们叫做走跳板的游戏 Alright let's find our contestants,Twitch you know who they are? - I do. 让我们的选手上台

发表于:2019-01-28 / 阅读(152) / 评论(0) 分类 艾伦脱口秀

1. 动词be的否定式 动词be根据不同的人称和时态可以有am, is, are, was, were等不同形式,可用作连系动词(表示是、在等)和助动词(用于构成进行时态和被动语态等),但不管何种情况,构成否定式时

发表于:2019-02-02 / 阅读(138) / 评论(0) 分类 实用英语

If you are someone who types a furious text message, only to reconsider and edit it before hitting send, you may be in trouble. The Beam Messenger app shows everything another person is typing in a text message as they type it. This means that if you

发表于:2019-02-06 / 阅读(145) / 评论(0) 分类 阅读空间

1.poker face 面无表情的人 例如: I never know whether my boss likes my work or not -- he is a real poker face! 我从来也不知道我的老板到底喜不喜欢我的工作。他脸上可真是一点表情都没有。 2.The shoe is on the

发表于:2019-02-09 / 阅读(199) / 评论(0) 分类 阅读空间

Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄,传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距

发表于:2019-02-16 / 阅读(189) / 评论(0) 分类 经济学人科技系列
学英语单词
.3gr files
afflalo
Afflanda
agate ring
air-separating tray
alkali producing bacteria
alky.
Ancylostemon rhombifolius
anterior internal vertebral venous plexus
antipathetic)
auditory system
baby-buggies
beaker sampling
Beprocin
bubble tower bottom
burial mound
central scheduler
Cephalotus
Chernukha
cholecystoncus
cloud engineer
cold rolled commercial quality sheet
commission to examine witnesses
corguide
costa (pl. -tae)
croo
datum shift
dead level attack
deflectable
diffuse scirrhous carcinoma of stomach
dry combustion boiler
due east
eilat (elat)
erectuss
Ergersheim
eyrie
fact-sheets
forwarders
fosterable
free fell
free of customs duty
fuel staging
fumble with
genus Sagittarius
heatful
Helmholtz's ligaments
identification friend or foe (iff)
ieste
imponderable substance
inflatable seal
injunctional
inverted V technique
Jewish Museum Berlin
leafier
leucoencephalopathy
line through
liquid fuel reactor
mauritanians
memory-intensive
mistura ipecacuanhae ammoniata pro infantibus
motional impedance
mudfishes
negatory
no-load switching-off
Nodi lymphatici juxtaintestinales
numerical algorithm library
ore dressings
overwashing
phenology
predispersal seed predation
predominace
pseudotransverse division
pyranic
ratio. muclear gyromagnetic
remanence effect
retally charge
sandwich structure construction
second palatalization
self-temperature compensated element
sench
sharp turn
sigmoidoscopies
sikulle
sly fox
social formation
speak together
speak with authority
St George's cross
stacking stall
stissing
strip line package
sublingual mucosa
tinaya
trogues
tucetona taiwanensis
upsloping
Valtice
velamen
wcvb
wound dehiscence of abdomen
zills
zinda