[电子] 开环放大

Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头,盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted

发表于:2018-12-07 / 阅读(126) / 评论(0) 分类 美丽新世界

Loop-De-Lou Here we go Loop-De-Lou Here we go Loop-De-Lou Here we go Loop-De-Lou All on a Saturday night. I put my two hands in I pull my two hands out, I give my hands a shake-shake-shake And turn myself about I put my big toe in I put my whole self

发表于:2018-12-08 / 阅读(167) / 评论(0) 分类 Gymboree金宝贝早教歌曲

CHORUS Here we go looply-loo! Here we go looply-loo! Here we go looply-loo! All on a Saturday night! You put your right hand in, you put your right hand out. You give your hand a shake, shake, shake.

发表于:2018-12-13 / 阅读(411) / 评论(0) 分类 迪斯尼儿歌第二集

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(129) / 评论(0) 分类 2013年VOA慢速英语(二)月

BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

发表于:2018-12-20 / 阅读(149) / 评论(0) 分类 中英双语新闻

This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

发表于:2018-12-24 / 阅读(185) / 评论(0) 分类 2015年Scientific American(一)月

In my lab, we recently made a cancer nanodetector 在我的实验室,我们最近研制出了一种癌症纳米检测器, that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。

发表于:2019-01-03 / 阅读(149) / 评论(0) 分类 TED演讲科学篇

to throw a curve to throw for a loop 美国人在打棒球时经常喜欢发曲线球,使球的方向会发生突变,这样给对方造成错觉,不能回击那个球。这和其他球类运动,

发表于:2019-01-07 / 阅读(264) / 评论(0) 分类 美国习惯用语

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 Scientific American(十)月

This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

发表于:2019-01-08 / 阅读(144) / 评论(0) 分类 Scientific American(三)月

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(191) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

发表于:2019-01-12 / 阅读(163) / 评论(0) 分类 2012年VOA慢速英语(一)月

'Word on Street' Impacted Language in 2011 While 2011 is over, some of the words that came to define the past year are still very much with us, and may be for years to come. Since 2011 was an especially busy year for grassroots political action, many

发表于:2019-01-13 / 阅读(113) / 评论(0) 分类 VOA标准英语2012年(一月)

Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为,我是说,耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现

发表于:2019-01-18 / 阅读(125) / 评论(0) 分类 TED演讲国际问题篇

Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(188) / 评论(0) 分类 英语语言学习

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(164) / 评论(0) 分类 VOA常速英语2007年(十一月)

Free loop 管不住的音符 英文歌词: I'm a little used to calling outside your name I won't see you tonight so I can keep from going insane But I don't know enough, I get some kinda lazy day Hey yeah I've been fabulous through to fight my tow

发表于:2019-02-04 / 阅读(154) / 评论(0) 分类 听歌学英语

free loop I'm a little used to calling outside your name 有点习惯大声叫喊你的名字 I wont see you tonight so I can keep from going insane 今晚不会见你,因此我也不会再次疯狂 But I don't know enough, I get some kinda lazy day 但

发表于:2019-02-04 / 阅读(139) / 评论(0) 分类 好听的英文歌曲

Nobel in Physics for Controlling Laser Light 诺贝尔物理学奖颁给激光控制实验者 The main practical application of CPA so far has been in the eye surgery. It was the first one, and I think it is the one that is used by the most people fo

发表于:2019-02-14 / 阅读(189) / 评论(0) 分类 2018年科学美国人10月

The Revolution in American Higher Education To produce the upheaval in the United States that changed and modernized the domain of higher education from the mid 1860's to the mid 1880's, three primary causes interacted. The emergence of a half dozen

发表于:2019-02-25 / 阅读(161) / 评论(0) 分类 双语有声阅读
学英语单词
acral myxoinflammatory fibroblastic sarcoma
acute febrile mucocutaneous lymphnode syndrome
air-borne particulate
Alcides
alumstones
anhedonic
aplans
Astropectinidae
balance lug
ballet schindowski
Bilipac
bob wigs
bobwhites
bolingers
Brown-Pearce tumor
bundle of coefficients
calibrating method
calphostin
certificate of advanced studies
Chaeryong
circuits
Ciudad Hidalgo
colloid stabilizer
consistency condition
corrosive pitting
daintification
dermovirus
distributing
double sleeve valve
drawing (scenic)
Ejerslev
etrusca
ex d.
factoryworker
Figuil
flying tail
foundation classes
foveola coccygea
Gablenz Range
gravimetric filling machine
Halevi, Judah
integrated avi onics system
intention movement
interest gearing
intermuscular septum
jacobo
jawless
Lafarge cement
late fringe
limasson
madala
mdbu
MERk-S
metallic-ionic mixed bonding
Mozambique Ridge
mrs. simpsons
nagda
NAND circuit
niermann
nonempty closed subset
oligidic diet
open-arse
outer continental shelf
overstrewn
paramagnetic bodies
pay the shot
pemphigus chronic
pennatulacea
pholades
plated bulwark
polar hares
pre-exist
prepackaged goods
prise
regression parameter
relishest
reverse leak current
ring of truth
ripple symmetry index
saloon-bar
second-handed
secondary pipe
skip image
slivka
smoked cheese
sophi
space out
spirochaetotic
static gearing ratio
Storfjord
stove blower
tar-dressing machine
threephase armature
turbine driven auxiliary unit
turbogasgenerator
unnecessarily
vehicle gauge
voltage divider theorem
workers' educational association
workhead
worldport
Zumbrota