声面波侦测器

Windows Vex Bats' Echolocating Abilities 干扰蝙蝠回声定位的烦人窗 Just as humans understand the shape of our surroundings by how light reflects off objects, bats use reflections of sounds they produce insteadwhats called echolocation. But

发表于:2018-12-02 / 阅读(224) / 评论(0) 分类 2017年Scientific American(九)月

Catchawaveandyouresittin Ontopoftheworld Dontbeafraidtotrythegreatest Sportaround (Catchawave,catchawavenow) Thosewhodontjusthaveto Putitdown Youpaddleoutturnaroundandraise Andbaby Thatsallthereistothe Coastlinecraze Catchawaveandyouresittin Ontopoft

发表于:2018-12-06 / 阅读(198) / 评论(0) 分类 美国 Kidsongs 英语儿童歌曲

Jack plunched down into thesea, the water was freezing cold, hepumped back up to the surface, choaking and coughing, the lifevest kept Jack closed, but the waves kept hammering at him. Help! Jack shouted. Thought to the twenty foot tiger shark, andmy

发表于:2018-12-10 / 阅读(245) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

A: Hello, this is Betty. B: Hi, Betty. Larry here. How many smoke detectors are in your apartment? A: Actually, I have two. B: Are the batteries fresh? A: Both batteries are good. B: Great. I need to come by and check them myself. A: No problem, when

发表于:2018-12-26 / 阅读(220) / 评论(0) 分类 租住公寓-Renting an Apartment

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 long [ lCN ] I longed for a bicycle. v

发表于:2018-12-30 / 阅读(270) / 评论(0) 分类 每日攻克5词

CatchAWave Catchawaveandyouresittin Ontopoftheworld Dontbeafraidtotrythegreatest Sportaround (Catchawave,catchawavenow) Thosewhodontjusthaveto Putitdown Youpaddleoutturnaroundandraise Andbaby Thatsallthereistothe Coastlinecraze Catchawaveandyouresitt

发表于:2018-12-31 / 阅读(275) / 评论(0) 分类 美国 Kidsongs 英语儿童歌曲

今天我们要学的词是heat wave。 Heat wave, 热浪,高温天气。 A heat wave is sweeping the Northeastern region of the United States, 美国东北部地区普遍出现高温天气。 The heat wave could be a record-breaker, 这次高温天气

发表于:2019-01-07 / 阅读(245) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是heat wave。 Heat wave, 热浪,高温天气。 A heat wave is sweeping the Northeastern region of the United States, 美国东北部地区普遍出现高温天气。 The heat wave could be a record-breaker, 这次高温天气

发表于:2019-01-07 / 阅读(250) / 评论(0) 分类 英语每日一词

MICHEL MARTIN, HOST: Let's talk midterm elections now. The enthusiasm of Democrats is a major force shaping this year's crop of candidates. Among the results of a newly energized Democratic Party, far more women are running and expected to run in thi

发表于:2019-01-16 / 阅读(270) / 评论(0) 分类 2018年NPR美国国家公共电台3月

A: Hello. B: Hi, Betty. It's Larry. Can you tell me how many smoke detectors you have? A: There are two smoke detectors in my apartment. B: Do you know how new the batteries are? A: I'm very afraid of fires. I change the batteries every Labor Day. B:

发表于:2019-01-20 / 阅读(183) / 评论(0) 分类 地道英语对话-租房

A: Hello, Betty speaking. B: Hey, Betty. This is Larry. Tell me how many smoke detectors you have, please. A: This apartment came with one, and I installed another one. B: Are there fresh batteries in each of them? A: Each detector beeps when the bat

发表于:2019-01-20 / 阅读(172) / 评论(0) 分类 地道英语对话-租房

A: Hello, this is Betty. B: Hello, Betty. This is Larry. How many smoke detectors are on your ceiling? A: I have two smoke detectors. B: Do you have fresh batteries in both of them? A: Both batteries are pretty fresh. B: Very good. I have to come by

发表于:2019-01-20 / 阅读(159) / 评论(0) 分类 地道英语对话-租房

A: Hello, this is Betty. B: Hi, Betty. Larry here. How many smoke detectors are in your apartment? A: Actually, I have two. B: Are the batteries fresh? A: Both batteries are good. B: Great. I need to come by and check them myself. A: No problem, when

发表于:2019-01-20 / 阅读(184) / 评论(0) 分类 地道英语对话-租房

A: Hi, this is Betty. B: Hi, Betty. It's Larry. I need to know how many smoke detectors are in your apartment. A: There was one when I moved in. Then I added one. B: Do both detectors have fresh batteries? A: I always keep them fresh. I don't want to

发表于:2019-01-20 / 阅读(202) / 评论(0) 分类 地道英语对话-租房

By Liu Enming San Francisco, California 04 September 2007 Pipe picks up sounds created by waves At the tip of a tiny peninsula near San Francisco, California's Golden Gate Bridge stands the Wave Organ, a work of art that allows people to listen to mu

发表于:2019-01-20 / 阅读(285) / 评论(0) 分类 2007年VOA标准英语(九月)

Just as humans understand the shape of oursurroundings by how light reflects off objects, batsuse reflections of sounds they produce insteadwhat's called echolocation. But despite theirexcellent sensing abilities, one type of obstaclevexes the animal

发表于:2019-02-14 / 阅读(185) / 评论(0) 分类 2018年科学美国人1月

The Way It Goes (Acoustic) - Passenger One man's home is another man's journey Stars shine late and the sun shines early One man's straight and another man's curly It's just the way it goes One man's trash is another man's treasure Rummaging around i

发表于:2019-02-18 / 阅读(183) / 评论(0) 分类 英文摇滚歌曲

PERTH, Australia/KUALA LUMPUR, April 6 (Xinhua) -- Chinese and Australian ships have picked up acoustic signals while searching for missing Malaysia Airlines Flight MH370 in the southern Indian Ocean. The underwater detection represents an important

发表于:2019-02-18 / 阅读(405) / 评论(0) 分类 英语新闻

Those waves hitting the sand actually begin far out at sea. And it doesnt take much to get them going. A little wind will do the trick. First the wind blows over the surface of the water, generating the little ripples you can see just by blowing acro

发表于:2019-02-23 / 阅读(165) / 评论(0) 分类 英语时差8,16

Sunrise... sunset One day I just can't forget. I follow you... you follow me We left footprints on the beach... You're so wrong... you're so right I can see us bathing in the moonlight Can you... can you... see... see it... see it too? (This is what

发表于:2019-03-04 / 阅读(343) / 评论(0) 分类 节奏布鲁斯
学英语单词
a princess of the blood
aeronomical
alertness
all electric interlocking
animal skin
annular producer
apostolic nuncio
asebotin
automatic blip-scan counter system
bead bobbin
beam recombination prism
bekinkinite
broken reeds
cefrotil
Ceres
civil societies
colored fire
coloring of node
cross-harbours
dilapidated building
evaporator core
exact rhyme
Exploring the net
extended type
fire climax
fit to
flasque
flexible coating
flower-seller
frock flick
fuelings
gapings
general casher
genus polygalas
graphite natural
grows
Hemacombistix
honnighausen
hydroxyglabrol
ice sample
iland
incubator thermometer
intertexed
intrusive breccia
Isovolume
jaws
jihaded
lateral ground bundle
LaxagetenTriacephentinum
Leriche's syndrome
lost calls held
lumpens
magistral
majolica colour
Maytenus inflata
meloid
molybdenum blue colo(u)rimetry
neuks
new-employee
non-competition energy
nuclei restiformis
nurserypeople
Oristano, Prov.di
ovarial
oxide trapped charge
paradoxical diaphragm phenomenon
pellicane
Pinghu
Poroshenko
Porpita
posting audit
precisionaire
Preesall
pseudomonosomic(hiorth 1948)
reedfish
riverward
rock-fill dam with face slab
rotary current converter
rotor stress distribution
Russian SFSR
semi-open slot
sheath removing device
sine-wave input
skippership
Sorbus wilsoniana
spam fax
spherically
squamatic acid
strain-gage amplifier
supersonic airstream
suturae frontolacrimalis
Suzukia luchuensis
to-stick
tourment
unclosable
unfilled corner
V process
vacuolisation
voltage multiplier
von karmen radome
work the stem
xanthellus