声学性能

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(92) / 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(99) / 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(102) / 评论(0) 分类 Scientific American(五)月

His bizarre behavior got many people's attention. 他古怪的行为吸引了许多人的注意。 bizarre是个形容词,表示古怪的,注意这单词的拼法也有点bizarre,中间有连续的两个r。

发表于:2018-12-25 / 阅读(98) / 评论(0) 分类 蒋健棠英语实用句子

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(133) / 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(147) / 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(127) / 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(155) / 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(99) / 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(107) / 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(114) / 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(86) / 评论(0) 分类 Scientific American(八)月

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(112) / 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(93) / 评论(0) 分类 VOA标准英语2012年(七月)

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(125) / 评论(0) 分类 VOA标准英语2009年(十一月)

GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. So most of us think we know ourselves pretty well, right? ROBERT SAPOLSKY: I'm sort of a hippie pacifist in terms of general persona. RAZ: That we're good people... SAPOLSKY: You know, I'm

发表于:2019-01-16 / 阅读(174) / 评论(0) 分类 2017年NPR美国国家公共电台8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(113) / 评论(0) 分类 2016CRI中国国际广播电台

HEALTH REPORT - Spending Up for Behavior-Related Drugs for Children By Jerilyn Watson Broadcast: Wednesday, May 26, 2004 This is the VOA Special English Health Report. More and more children take medi

发表于:2019-01-30 / 阅读(121) / 评论(0) 分类 健康与经济

BEIJING, Nov. 9 (Xinhuanet) -- Kids with a depressed father tend to have more behavior issues than those with a happy father, a latest US study shows. The study, published in the journal Pediatrics, used data from home interviews with almost 22,000 f

发表于:2019-02-06 / 阅读(98) / 评论(0) 分类 英语新闻

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(140) / 评论(0) 分类 实用英语
学英语单词
abdominal organ
accrual principle
advanced strains
agarospirol
Akordat
amoralisms
Andeg
at the top of your voice
azanator maleate
Ba Illi
basket container
biographettes
British Rayon Research Association
bust my chops
by-pass manifold
Chamosan
chapter-by-chapter
chelidon
component source
connection oriented data transfer
constrained restoration
cook-books
decompactification
definite annuity
degree of overlapping
detrital remanent magnetism
diaphyseal aclasis
diffusing type steam valve
direct closing method
disrupted terrane
dolmush
dry rotted
eagernesses
ejector thrust augmentation
electric warning horn
fire resisting cable
four stranded rope
fun-seekers
glandular tissue
had got to
hohenstaufen
huttoe
in accordance with
indumenta
inhelde
insectdom
join the party
Lamina visceralis
late summer
lissy
macrovariable
man machine interactive
meal of flax seeds
medjez
Meta-murmanite
Midhdalsfjall
Mister Nice Guys
multichannel optoanalyzer
music centre
net loss not recognized as pension cost
nightrobes
non-striker
odds and endss
off duty
on-line learning control
Pandora's box
parallel chain of command
passes down
peripheral equipment
permanent experiment
permanent weight
planchonelline
pornoaction
public easement
put sth aside
quarter-pounder
reactor instrumentation and control system
red bridge washer valve
reddick
remote control channel
resolution modification
salen
salt effect
sampled analog data
squamous alveolar cell
suaveolent
superhumanities
tamping drum
three men in a boat
train slack
triple segmental baffle
troglocolous
trophomenata
tying product
v (volt)
ventral surface of cerebrum
Vienna mixture
weadick
written down value
yahoo.com
Yttroepidote
Yushania baishanzuensis