[电] 声学仪器

When Pablo Panda Sandoval made history with 3 home runs in game one of the world series his head was probably buzzing. But when batters in chilly Detroit had the ball not quite right in the next couple of the nets, it will be their hands that buzzing

发表于:2018-12-24 / 阅读(112) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Can you name those notes? Probably not. Perhaps one in ten thousand speakers of European languages has perfect pitch - the ability to recognize a note without having hea

发表于:2018-12-24 / 阅读(125) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. If you ever got picked on in the schoolyard, you might have wished for some sort of superpower, like unbeatable speed or maybe just the ability to completely disappear. Now scientists

发表于:2018-12-24 / 阅读(126) / 评论(0) 分类 Scientific American(五)月

DIALOG 38 (Sound of piano playing) laurance--Listen!Somebody's playing the piano. soony--Yeah,it sounds nice,doesn't it?I wish I could play a musical instrument. laurance--Don't you play the violin? s

发表于:2018-12-26 / 阅读(132) / 评论(0) 分类 英语经典听力对话

Scientists analyzed around 2,500 of those calls, and found that the second part (sound) is nearly identical in pitch every time from each whale: 16 hertz, or four octaves below middle C. And the slight variations in frequency that do exist are only a

发表于:2019-01-02 / 阅读(154) / 评论(0) 分类 60秒科学

Hybrid cars are good for the environment. But scientists say that they might be bad for pedestrians. Because hybrids are so quiet, it can be hard for walkers to hear them until its too late. Listen to this. [quiet car sound] Thats a Toyota Prius mov

发表于:2019-01-02 / 阅读(174) / 评论(0) 分类 60秒科学

Can you name those notes? Probably notperhaps one in 10,000 speakers of European languages has perfect pitch, the ability to recognize a note without having heard any reference note first. But theres a much better chance you could successfully name

发表于:2019-01-02 / 阅读(152) / 评论(0) 分类 60秒科学

If you ever got picked on in the schoolyard, you might have wished for some sort of superpower: like unbeatable speed or maybe just the ability to completely disappear. Now scientists at the College of Wooster in Ohio say that you might have had a s

发表于:2019-01-02 / 阅读(183) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Every year, scores of manatees are killed by boats in Floridas waters. Their plight is an ecological concern. And everyone from marine biologists to Marg

发表于:2019-01-08 / 阅读(122) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Hybrid cars are good for the environment, but scientists say that they might be bad for pedestrians. Because hybrids are so quiet that can be hard for wa

发表于:2019-01-08 / 阅读(131) / 评论(0) 分类 Scientific American(五)月

We humans are pretty good at communicating with sounds other than words. But how much of this is hard-wired, and how much do we pick up from others? To find out, researchers recorded the nonverbal sounds of people born deaf, as they responded to a ra

发表于:2019-01-08 / 阅读(163) / 评论(0) 分类 Scientific American(十一)月

Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us to hear. Scientists analyzed around 2,500 of those calls, and found that the second

发表于:2019-01-08 / 阅读(111) / 评论(0) 分类 Scientific American(八)月

I really wish I could play a musical instrument. I cant. I had a few music lessons when I was a kid, but I didnt keep them up. I really regret that now. I get quite jealous of people who can play a musical instrument. Its a wonderful ability. I hope

发表于:2019-01-09 / 阅读(136) / 评论(0) 分类 纯正英语一分钟

EXPLORATIONS - The Guitar: an Instrument for Any Kind of Music By Paul Thompson Broadcast: Wednesday, May 25, 2005 (MUSIC) VOICE ONE: I'm Steve Ember. VOICE TWO: And I'm Phoebe Zimmermann with Explora

发表于:2019-01-09 / 阅读(197) / 评论(0) 分类 Explorations

Country Music Ladies Put Men in Their Place American country music lyrics often describe women as they might appear in mens dreams. This is especially true of songs by many male artists. But the songs by Maddie Marlow and Tae Dye are different. The t

发表于:2019-01-12 / 阅读(134) / 评论(0) 分类 2015年VOA慢速英语(九)月

Boston Symphony Makes Music in Mountains When Serge Koussevitzy, the Russian-born conductor of the Boston Symphony Orchestra, opened Tanglewood in 1937, he chose an all-Beethoven program, including the Pastorale Symphony. When conductor Christoph von

发表于:2019-01-13 / 阅读(112) / 评论(0) 分类 VOA标准英语2012年(七月)

Ancient Instrument's Twang Draws Global Fans The Jews harp, a plucked-mouth instrument found all over the world, has absolutely nothing to do with Jews. But it does have a distinctive sound and a lot of fans. Many of them have gathered at the North A

发表于:2019-01-14 / 阅读(174) / 评论(0) 分类 VOA标准英语2011年(八月)

By Alisha Ryu Nairobi 18 November 2009 A U.S.-flagged container ship which was hijacked by Somali pirates seven months ago has been attacked again off the coast of Somalia. Pirates were unsuccessful in their second attempt to hijack the Maersk Alaba

发表于:2019-01-14 / 阅读(148) / 评论(0) 分类 VOA标准英语2009年(十一月)

The Tiangong-2 space lab, though adopting the structure of Tiangong-1 without too many changes in appearance, has been designed to function much stronger than its predecessor. Zhu Congpeng, chief designer of the lab, says they've focused on a variety

发表于:2019-01-19 / 阅读(135) / 评论(0) 分类 2016CRI中国国际广播电台

通知与确认 Acknowledgments Confirmations 通知对方接到来信Acknowledging receipt of letters1. Dear Mr/Ms,Thank you for your letter No. A-3 of 6th May, offeringus 6 UI-4 Viewdatas. We have passed it on to ourTechnical Department for their c

发表于:2019-02-06 / 阅读(162) / 评论(0) 分类 实用英语
学英语单词
above-stairs
Ac cast
after-condenser discharge line
allowable-load
antimildew compound
Arusha Declaration
asahina
asking you out
attack aeroplane
automatic cleaning strainer
basic atomic group
Bayrak
bear the sign of the times
bentazone
beskirt
bowling scores
braggadocii
cayotes
chamber brick
cheesesteak
colony hybridization
colour display device
common program
Coopworths
crenatures
cryptate compound
demilunes
destainings
desynchronized
di-2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester
difficult-to-reach
dried fish floss
dryopsis maximowicziana
duff up
duty drawback
ectopia of ureteral orifice
einstein's formula for specific heat
emerson
eximine
eye coal
fair as a as a rose
feelingness
gas-generator
genus chaenactiss
hatelike
have no stomach for something
hover mode
hscc
intermediary movement
iyengar
key range
kinetics of gases
Lambmass
latses
legal formaities
lgvs
Listera convallarioides
Mackeson
mental disease
Myrica cerifera
Mödhruvellir
necromantics
oblique incident wave
on your life
opera film
Orléansville
ortracheal intubation
oscillatoxanthin
oswalt
pellidol
photographic thermal neutron image detector
photovoltaic detection
pj
Plenasium
product of topological groups
Puerto Yerua
pyranoside
quadratic integer
quartier
raise ... voice
ringmagnet phone
Robinson, Jackie
rogue in grain
slack away chain
stationary mill
stream regime
terminal endocarditis
time of duration
tooties
toyomycin
trailer pump
unclassified track
underproduction crisis
undue prejudice
uniprocessor system
unresolved issues
ureotelism
valenzuela stigmatus
Vetluga River
warnin'
worthy of belief
yeom