表面声波鉴频器

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(155) / 评论(0) 分类 2017年Scientific American(九)月

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(162) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

What's the frequency kenneth is your benzedrine Uh huh I was braindead locked out numb not up to speed I thought I'd pegged you an idiot's dream Tunnelvision from the outsider's screen I never understood the frequency Uh huh You wore our expectations

发表于:2018-12-13 / 阅读(198) / 评论(0) 分类 Friends 老友记全10季英语插曲

Economics Report - A Closer Look at High-Frequency Trading 经济报道 - 近距离审视股票市场高频交易 This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 Once, stocks were traded through the

发表于:2018-12-16 / 阅读(173) / 评论(0) 分类 2011年VOA慢速英语(十)月

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(197) / 评论(0) 分类 每日攻克5词

Focal Length - Distance from the exact center of the dish to the center of the feed. Focal Point - The physical point in space toward which the satellite reflector dish directs the received signal so

发表于:2019-01-03 / 阅读(158) / 评论(0) 分类 电信英语

Frame In time division multiplexing systems, Frame is a sequence of time slots each containing a sample from one of the channels carried by the system. The frame is repeated at regular intervals, (nor

发表于:2019-01-03 / 阅读(142) / 评论(0) 分类 电信英语

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(184) / 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(177) / 评论(0) 分类 英语每日一词

Screams Have Special Place in Brain 尖叫声在大脑中会有特殊的位置 From VOA Learning English, this is the Health Lifestyle report. Have you ever thought about screaming? A blood-curdling scream is a natural reaction to sudden, extreme fri

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2015年VOA慢速英语(八)月

By Deborah Block Washington 22 May 2008 President Bushsigned a new anti-genetic discrimination bill on May 22.He says the act protects Americans against misuse of their genetic information by employers and insurance companies. The U.S. House of Repre

发表于:2019-01-13 / 阅读(138) / 评论(0) 分类 VOA标准英语2008年(五月)

High Frequency Traders Under Scrutiny 美司法部调查高频交易 The U. S. Justice Department is investigating the relationship between high frequency trading firms and major exchanges -- and regulators in Washington and the state of New York are

发表于:2019-01-14 / 阅读(176) / 评论(0) 分类 VOA标准英语2014年(四月)

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(203) / 评论(0) 分类 2018年NPR美国国家公共电台3月

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(191) / 评论(0) 分类 2007年VOA标准英语(九月)

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-02 / 阅读(175) / 评论(0) 分类 英语新闻

There are many ways to express the frequency of events. Here are just a few. 你可以用许多方式来表达事情发生的频率,以下仅为其中一些。 1. a few times 1.几次 2. all the time 2.总是 3. almost always 3.几乎总是 4. almo

发表于:2019-02-03 / 阅读(185) / 评论(0) 分类 实用英语

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(125) / 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(144) / 评论(0) 分类 英文摇滚歌曲

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-21 / 阅读(157) / 评论(0) 分类 2016CRI中国国际广播电台

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(126) / 评论(0) 分类 英语时差8,16
学英语单词
abandonment
Alsfeld
andropodium
antiair warfare
Arteria urethralis
balluz
barong
bath chamber
bay stop
beam flexure test
Ben-Gurion
Betz momentum theory
blepephaeopsis yagii
Buhlenberg
cardio-augmentor
Class B certification
composite steel concrete column
conjugated double linkage
Cowgill's law
CP (chemical pure)
cyclic phenomena
D-SPINE
D.P.R.K.
direct drive position
doggesses
Drylene
dunach
dysteleologist
empis scopulifera
equidensoscopy
extened launder furnace
faciocephalalgia
family hamamelidaceaes
fan belt idler
fiber reinforced metal
fibroid uterus
flesh recording
foil-activation technique
forest acreage
has some thoughts of
high removable worktable
high speed disintegrator
high-frequency current standard
histaffine
internal prices
intestinal moniliasis
jump the broom
laparotyphlotoomy
Ma Wan
machine for processing rice noodle
media technician
memory access protection
more intimate
mortar injection
nighttide
over-award
pearl-bordered fritillaries
petechial eruption
Phnom Dâmrei
Pinwe
plant maintenance expense
pleine
porosity control
processionalists
riks
RPF
sand compaction pile method
satellite oceanic surveillance
scandium chloride
scupham
secondset reaction
Setenv
silcina
society of dyers and colourists(sdc)
spatial switching
specialized government agencies
spectrum, absorption
spongine
squill vice
statistic variance
stone-blind
substring reference
super-non-expansion steel
system of simultaneous equations
tempre
Tertiary system
tier pile
travel(l)ing trader
turbine governor system
turnage
turnwrest swing plough
unbilled capital
unebriate
unfarme
unit-cost contract
Ust'-Kan
vanadium(v) sulfide
vitaminised
weakly equivalent
wobbulate
yeast extract medium
zone of round nuclei