作接地电极

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发表于:2018-12-01 / 阅读(124) / 评论(0) 分类 用Mp3背六级单词

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(131) / 评论(0) 分类 Scientific American(十二)月

September Equinox 秋分 We have an equinox because an imaginary plane extending outward from Earth's equator isn't the same as the plane of Earth's orbit around the sun. Learn more about today's equinox -- on Earth and Sky.. JB: This is Earth and Sky

发表于:2018-12-07 / 阅读(133) / 评论(0) 分类 (科普英语)Earth and Sky

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens,found in the mud at Oyster Bay,Virginia,has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(98) / 评论(0) 分类 有声杂志阅读

Chaim Response and Settlement Dialogue 1 -Chaim service department. -Hello!.I'm calling to apeal a property insurance claim denial. -May I have your name,please? -Mr.Li,Mr.Li wenming. -Yes.I've found your name here in the records.You lost your house

发表于:2018-12-25 / 阅读(106) / 评论(0) 分类 公务员口语

Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w

发表于:2019-01-02 / 阅读(297) / 评论(0) 分类 60秒科学

EXPLORATIONS - 'Houston, We've Had a Problem Here': The Survival of Apollo 13By Marilyn Rice Christiano and directed by Paul Thompson Broadcast: Wednesday, August 30, 2006 ANNOUNCER: EXPLORATIONS -- a

发表于:2019-01-02 / 阅读(54) / 评论(0) 分类 2006年慢速英语(八)月

John Glenn, First American to Orbit Earth, Dies at 95 美国首位进入地球轨道宇航员约翰格林去世,享年95 Astronaut John Glenn, the first American to orbit the earth, has died. Glenn was 95. He was admitted to the James Cancer Hospit

发表于:2019-01-03 / 阅读(100) / 评论(0) 分类 2016年VOA慢速英语(十二)月

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(101) / 评论(0) 分类 Scientific American(八)月

Welcome to This I believe, an NPR series presenting the personal philosophies of remarkable men and women from all walks of life. I believe in honor, faith, and service. I believe that a little outrage can take you a long way. I believe in freedom of

发表于:2019-01-08 / 阅读(126) / 评论(0) 分类 2006年NPR美国国家公共电台

VOICE ONE: I'm Barbara Klein. VOICE TWO: And I'm Steve Ember with EXPLORATIONS in VOA Special English. Today we continue the history of the American space program with the flight of Apollo Thirteen, the flight that almost did not return home. (MUSIC

发表于:2019-01-11 / 阅读(88) / 评论(0) 分类 VOA慢速英语2009年(七)月

EXPLORATIONS - Apollo 13: 'Houston, We've Had a Problem Here' BARBARA KLEIN: I'm Barbara Klein. STEVE EMBER: And I'm Steve Ember with EXPLORATIONS in VOA Special English. Today we continue the history of the American space program with the flight of

发表于:2019-01-12 / 阅读(93) / 评论(0) 分类 2012年VOA慢速英语(九)月

LOS ANGELES, June 24 (Xinhua) -- Near-Earth asteroid 2011 MD will whip past Earth on June 27, but will not pose any threat, NASA's Jet Propulsion Laboratory (JPL) said on Friday. The asteroid will pass only 12,000 kilometers (7,500 miles) above the E

发表于:2019-01-20 / 阅读(105) / 评论(0) 分类 英语新闻

32 阿波罗登月计划(二) DATE=4-18-01 TITLE=EXPLORATIONS #1948 - PROJECT APOLLO (PART TWO): APOLLO THIRTEEN BYLINE=MARILYN RICE CHRISTIANO ANNCR: Explorations --- a program in special English by

发表于:2019-01-30 / 阅读(139) / 评论(0) 分类 科技之光

SAN FRANCISCO, June 28 (Xinhua) -- Google on Tuesday rolled out a new social networking service named Google+, a long awaited move of the Internet search giant to crack the industry's social trend dominated by Facebook. Unlike Facebook, Google said t

发表于:2019-02-07 / 阅读(83) / 评论(0) 分类 英语新闻

China to speed up service sector development BEIJING, Sept. 26 (Xinhua) -- The State Council, China's Cabinet, on Wednesday announced multiple tasks for accelerating the development of the country's service sector in the 2011-2015 period. Developing

发表于:2019-02-07 / 阅读(94) / 评论(0) 分类 英语新闻

BEIJING, June 28 (Xinhuanet) -- A truck-sized asteroid passed over the Atlantic Ocean within 7,500 miles of the Earth on Monday, according to NASA's Jet Propulsion Laboratory. The space rock, called asteroid 2011 MD, is the second space rock to zip e

发表于:2019-02-15 / 阅读(88) / 评论(0) 分类 英语新闻

BEIJING, July 19 (Xinhuanet) -- Amazon on Monday launched its Kindle textbook rental service, which allows students to rent tens of thousands of textbooks, according to Los Angeles Times. The e-book textbook rental service will help students save as

发表于:2019-02-17 / 阅读(94) / 评论(0) 分类 英语新闻

I would prefer the traditional service 我还是喜欢传统的仪式 A young couple met with their pastor to set a date for their wedding. When he asked whether they preferred a contemporary or a traditional service, they opted for the contemporary.

发表于:2019-02-17 / 阅读(101) / 评论(0) 分类 趣味英语

SAN FRANCISCO, June 28 (Xinhua) -- Microsoft on Tuesday launched its cloud service Office 365, which was the software giant's answer to competing products from Google and other companies. The service includes on-line versions of Word, PowerPoint, Exc

发表于:2019-02-19 / 阅读(80) / 评论(0) 分类 英语新闻
学英语单词
advanced medium stol transport (amst)
an estimated
atomic fluorescence
avus
band forming pliers
BEMF (back electromotive force)
Benāpol
black dose,black draught
blimpin
breathe deeply
Buddinge
bull eye lamp
chambered ovary
clavus candens
coalesced filament
cussedness
cut-and-paste transposition
damaskin
decktube
delta-front sheet sand
designer apartment
digestant
discriminant of number field
disneyworld
distance between seats
dostoevskis
drove home
dumptor
elastic after-effect
embushment
erythrocyte-antibody rosette
experimental psychiatry
fast hardening concrete
FAT (Factory Acceptance Test)
fibre-optic nuclear hardening
flow contact length
Fuegian
gentleman's measure
glycophyte glykiphyte
gotshal
hair pincers
hair worm
heavyheartedness
hedratresia
hettner
high-dosest
hissie fits
home industries
homogenic incompatibility
Hydrocotyle keelungensis
illiberalize
incomplete symbol
inkling
International Securities Exchange
inventory date
ionospheric radar
jacquins
kabardino-balkaria
Khama III
lieth
macroglossum mitchelli imperator
Mangles, Is.de
Martins B.
methyl transfer
midhinge
monilia albicanss
mosaicism
name of vessel
nanodimers
nitrogen blanketing
object expression
Olethreutidae
parasitic worm
piezoresistive proportionality constant
preexcitation wave
Rinn R.
rural location
scratch disk
sensornet
smoking stand
snap action
sodium-sulphur battery
soil microflora
source program editing
square planar structure
strick on
strike suits
sun-browned
super-metal-rich star
suppression pool spray
Synopsis of Treating Women's Diseases
tachyglossid
tackmeter
thanklewe
tingeth
traffic demand
unpolarized radiation
venae glutaeae inferiores
vertical landing
whole worm antigen
winter cropping
Wintrich's sign