控制涡流,受控涡流

This is Whats Trending Today When it comes to weather, it is hard to sound more frightening than to call a storm a bomb cyclone. 谈到天气,很难听到什么比炸弹旋风更可怕的了。 But that is how weather experts are describing a huge

发表于:2018-12-08 / 阅读(494) / 评论(0) 分类 2018年VOA慢速英语(一)月

不怕伤鸟:无扇叶涡轮风力发电机 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of wind generator developed in Spain offers a crea

发表于:2018-12-19 / 阅读(139) / 评论(0) 分类 VOA双语新闻 2015年6月

Mind-Controlled Prosthetics Are Getting Closer Scientists and engineers are making substantial advances towards the ultimate goal in prosthetics creation of limbs that can be controlled by the wearers mind. Thanks to sophisticated sensors capable of

发表于:2019-01-03 / 阅读(185) / 评论(0) 分类 VOA标准英语2015年(五月)

SCIENCE IN THE NEWS -May 21, 2002: First electronically controlled animals / Study of mothers and their sons / Effects of global warming Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this i

发表于:2019-01-07 / 阅读(175) / 评论(0) 分类 科技之光

Extreme Cold Freezes Much of United States From VOA Learning English, this is In the News. A weather system known as a polar vortex brought dangerously cold weather to large parts of the United States this week. A polar vortex is a cold, thick low pr

发表于:2019-01-12 / 阅读(166) / 评论(0) 分类 2014年VOA慢速英语(一)月

Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t

发表于:2019-01-12 / 阅读(248) / 评论(0) 分类 2015年VOA慢速英语(七)月

Bladeless Wind-Power Generator is Friendly to Birds 新型风力发电机避免误伤鸟类 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of w

发表于:2019-01-14 / 阅读(159) / 评论(0) 分类 VOA标准英语2015年(六月)

新型风力发电机不会伤及鸟类 In 2002, Spanish inventor David Yanez saw a short film about the Tacoma Narrows Bridge in the U.S., collapsing in strong wind. 2002年西班牙发明家大卫亚尼斯看了一部关于强风造成美国塔科马

发表于:2019-01-14 / 阅读(131) / 评论(0) 分类 VOA标准英语2015年(十二月)

What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds kind of do. Maples make those little whirlybird seeds you see spiraling down in droves each sprin

发表于:2019-01-30 / 阅读(304) / 评论(0) 分类 60秒科学

China's national observatory renewed its orange alert for cold wave- the second highest level - on Sunday evening. Sun jun, chief forecaster of the National Meteorological Center, says the strong cold front is linked with the activity of the polar vo

发表于:2019-02-02 / 阅读(156) / 评论(0) 分类 英语新闻

christmas in my heart 圣诞在我心 德国女生Sarah Connor,以甜美、带劲的节奏蓝调歌唱实力进军欧洲乐坛。从2001年出道至今,每张唱片都能占据德国专辑榜的前列,甚至在其他国家也能进入前十的位

发表于:2019-02-03 / 阅读(138) / 评论(0) 分类 听歌学英语

The mascot, Kangkang, debuted on Thursday. It's based on a colored ink prototype painted by well-known Chinese artist Han Meilin. The 80-year-old is the man behind the famous fuwa, the mascots for the Beijing Olympic Games in 2008. For the Spring Fes

发表于:2019-02-05 / 阅读(171) / 评论(0) 分类 英语新闻

Temperatures in Beijing dropped to below minus-10 degrees Celsius on Friday. Forecasters are warning the temperatures are going to hit a 30-year low through this weekend. Yu Bo is the chief forecaster with the Beijing Municipal Meteorological Center.

发表于:2019-02-14 / 阅读(222) / 评论(0) 分类 2016CRI中国国际广播电台

China's national observatory renewed its orange alert for cold wave- the second highest level - on Sunday evening. Sun jun, chief forecaster of the National Meteorological Center, says the strong cold front is linked with the activity of the polar vo

发表于:2019-02-14 / 阅读(172) / 评论(0) 分类 2016CRI中国国际广播电台

Arctic Heat Waves Linked to Snowpocalypse-Like Storms February was unusually hot in the arctic. Thawing out temperature: 35 degrees Fahrenheit.It made big news when it got to 35, I don't know if that's t-shirt weather yet, but 北极在二月时异常炎

发表于:2019-02-14 / 阅读(151) / 评论(0) 分类 2018年科学美国人3月

A polar vortex, also known as a circumpolar vortex, is a wind current that circulates above the North and South Poles. The currents sit like spinning hats above the Poles. 极地涡旋,又叫环极涡旋,是环绕在南极和北极上空的一股气

发表于:2019-02-16 / 阅读(177) / 评论(0) 分类 英语新闻

Now let's get some of the science behind the cold. What is driving these temperatures and how long is it expected to last. We bring in meteorologist Alex Wilson of US' Weather Channel. As even talking about this unusual cold, something you've been he

发表于:2019-02-18 / 阅读(214) / 评论(0) 分类 CCTV9英语新闻2014年01月

What Is the Polar Vortex? Record cold weather in the United States is forcing schools and businesses to close. The polar vortex, as it is called, has also canceled flights and suspended mail delivery. The temperature in Fargo, North Dakota, dropped t

发表于:2019-02-18 / 阅读(158) / 评论(0) 分类 2019年VOA慢速英语(二)月

STEVE INSKEEP, HOST: You know it's cold in Chicago when TV video shows the railroad tracks on fire. Steel rails contract in exceptional cold. So to warm them up, transit workers stretch rope soaked in kerosene along the tracks, and they burn it. The

发表于:2019-02-19 / 阅读(144) / 评论(0) 分类 2019年NPR美国国家公共电台1月

When a prospective employer makes unreasonable demands on you before things start to get serious, it's a strong signal to hit the road. 当一位未来雇主在工作还没正式之前就提出了无理要求,那么明显说明你需要跑路了。

发表于:2019-02-21 / 阅读(253) / 评论(0) 分类 实用英语
学英语单词
an rubha
annuity in reversion
aphaenogaster tipuna
armature frequency
asantaclausist
aviation mechanics
barbiere
Barenburg
Bessel function of the second kind
book hand
bornes de aguiar
bridge feedback
cab-behind-engine truck
call store
chelate compound
circulating liquid laser
circumfodient
closing pressure surge
colic branch
colitoxemia
Collins, Judy
consistency requirements of utility
dead-end complex
decapitating hook
degregori
deoxygenated
diaspironecrosis
DIOB (digital input/output buffer)
diolein
disilanylamino-
diverti-culectomy of urethra
early - warning system
electromotive field
enterohepatocele
estimated time of berthing
ex div.
ex vivo perfusion
extructed
f.r.c.
fine sandy loam
forearm bones
fruit tree physiology
gas-fueled reactor
genetic quality
GM_first-firstly-or-at-first
guide someone's steps
harness bends
high amylose starches
how was I to know?
intermediate spotted woodpecker
jainisms
Jojutla
lava millstone
mandibular neck crest
marshalling point
militaric
moneylending contract
Mopipi
mounted volume table address
mrs white
musk seed
never-nude
NORED
nzb/w (new zealand black/white) mouse
orthographic film
outguard
panfry
paper speed error
patkai bum (patkai ra. )
pepper grinders
photomorphogenesis
problem statement analyzer
proliferative strands
promotee
re-capitalized
rearward communication system
record of cash disbursements
reserve preferences
response time utility function
rheological history
rockhopper
rokita
Sabine reverberation formula
salamat
seedspecimenjar
static spring gravimeter
strongylium erythrocephalum
subphylum Craniata
supplementary water injection
Surabaya, Selat
test scroing machine
thiele-geddes method
tigs
torque creep
traveling pulse
tuyere zone
tyndales
tyro-
Ungulata
unmast
wax stone
zoophysics