孔材料平面表面

EXPLORATIONS - The Year in Space By Paul Thompson Broadcast: Wednesday, December 29, 2004 VOICE ONE: I'm Faith Lapidus. VOICE TWO: And I'm Steve Ember with the VOA Special English program EXPLORATIONS

发表于:2018-12-15 / 阅读(149) / 评论(0) 分类 Explorations

There are many theories about what happened to the missing Malaysia Airlines plane but confirmed information is hard to come by. We\'ll tell you what we know today on CNN Student News. \It\'s been 13 days since the flight with 239 people aboard vanis

发表于:2018-12-19 / 阅读(143) / 评论(0) 分类 CNN2014年(三)月

This is Scientific American 60-Second Science. I'm Cindey Graber. This will just take a minute. When TV sets die, they usually end up incinerated or in landfills. But now researchers from Englands University of York believe theyve found a valuable us

发表于:2018-12-24 / 阅读(167) / 评论(0) 分类 Scientific American(七)月

Why does Florida have so many springs? Florida sits on a layer of porous limestone which acts as an underground reservoir or aquifer. This aquifer can absorb huge amounts of water. Where the pressure is great enough, springs bubble up, spewing up bil

发表于:2018-12-26 / 阅读(142) / 评论(0) 分类 自然百科2009年

[00:05.75]The American space agency has released to the public the first of many new pictures of Jupiter's Moon,Io. [00:15.41]NASA's Galileo spacecraft took the pictures last July and October using both black and white film and color film. [00:25.73]

发表于:2018-12-26 / 阅读(139) / 评论(0) 分类 美国英语听力80篇

Daylight Turns Thin Plastic Barrier into Germ-Killing Material Daylight-powered germ-killing equipment may someday help protect health workers from deadly microorganisms like Ebola virus disease. That is a finding from a study published in the journa

发表于:2019-01-03 / 阅读(115) / 评论(0) 分类 2018年VOA慢速英语(四)月

Broadcast: May 5, 2003 By Jill Moss This is the VOA Special English Development Report. Each year more than two-million people die from diseases caused by drinking dirty water. That is the estimate of

发表于:2019-01-04 / 阅读(182) / 评论(0) 分类 VOA2003(上)-社会广角

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(187) / 评论(0) 分类 Scientific American(八)月

This is Scientific American 60 Second Science, I am Sophie Bushwick, got a minute? Is the attempt to make environmentally friendly roadways doomed to wind up in the toilet? Actually, it may be the other way around. To earn a green certification, the

发表于:2019-01-08 / 阅读(158) / 评论(0) 分类 Scientific American(三)月

英语中大多数介词含义灵活,一词多义多用。除了一些常用短语已有译法外,大量介词需要从其基本意义出发,联系上下文加以灵活处理。下面简明地介绍几种基本译法。 (1)转译:英语中常

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 英语笔译

Belgium-Germany Border Remains Porous 德国比利时边境虽加强边检但漏洞仍多 LIGE (BELGIUM) / AACHEN (GERMANY) One of the suspected gunmen in the Nov. 13 Paris attacks, Salah Abdeslam, evaded law enforcement, made his way to Belgium, and

发表于:2019-01-14 / 阅读(160) / 评论(0) 分类 VOA标准英语2015年(十一月)

And in fact, Curiosity -- which has been roving on the surface now for about three years -- 事实上,好奇号探测车,在火星表面上漫游已经有三年了 has really shown us that it's sitting in an ancient river bed, where water flowed

发表于:2019-01-18 / 阅读(187) / 评论(0) 分类 TED演讲科学篇

This is scientific American ,60 second science. Im Chris D..ta. Got a minute? In less you have a pair of noise-cancel headphones. Flying can be annoying to the ears. A lot of low-pitch rumbling makes it into the cabin. The problem is ,the wings ,floo

发表于:2019-01-20 / 阅读(203) / 评论(0) 分类 2015年Scientific American(五)月

-Sheldon: The moving assembly line,that was, introduced by Henry Ford in 1908. moving assembly line: 流动装配线 moving: 活动的 assembly: 装配 introduce: 引进 流动装配线是由亨利福特在1908年引进的 -Sheldon: That innovation i

发表于:2019-01-28 / 阅读(138) / 评论(0) 分类 生活大爆炸第二季

(1)转译:英语中常用介词来表达动作意义。汉译时,可将介词转译成动词。 ①在作表语的介词短语中,介词常转译为动词,而连系动词则省略不译。如:This machine is out of repair.这台机器失修

发表于:2019-02-01 / 阅读(125) / 评论(0) 分类 英文语法词汇

英语中大多数介词含义灵活,一词多义多用。除了一些常用短语已有译法外,大量介词需要从其基本意义出发,联系上下文加以灵活处理。下面简明地介绍几种基本译法。 (1)转译:英语中常

发表于:2019-02-06 / 阅读(119) / 评论(0) 分类 实用英语

1. 转译: 英语中常用介词来表达动作意义。汉译时,可将介词转译成动词。 (1)在作表语的介词短语中,介词常转译为动词,而连系动词则省略不译。如: This machine is out of repair. 这台机器失

发表于:2019-02-09 / 阅读(132) / 评论(0) 分类 英语笔译

U.S. military and diplomatic leaders are moving ahead on the Afghanistan strategy that President Trump laid out in a speech to the nation last night. His remarks brought reaction today from the region, and the world. Nick Schifrin begins our coverage

发表于:2019-02-13 / 阅读(128) / 评论(0) 分类 PBS访谈社会系列

Jet streams, usually located about 30,000 to 35,000 feet up, can bowl along at up to 180 miles an hour and vastly influence weather systems over whole continents, yet their existence wasn't suspected until pilots began to fly into them during the Sec

发表于:2019-02-25 / 阅读(131) / 评论(0) 分类 万物简史

You are listening to this podcast on a computer, or perhaps you have downloaded it from a computer to an MP3 player. So I am sure that you know what the words hardware and software mean. Hardware means the computer itself and other machines which are

发表于:2019-03-01 / 阅读(187) / 评论(0) 分类 听播客学英语
学英语单词
allometron
aronowitz
automatic layboy
blade element
blungers
breaking the seal
c.p.i. (courses per inch)
CIF (cost, insurance and freight)
commanders-in-chief
condensed spark
control word
coronenes
cyberattacker
daylight light
DDPA process
depersonate
displacement characteristics curve
dmc (discrete memoryless channel)
drachenfels trachyte(drakonite)
dryopteris dilatatas
effective values
electrometrogram
encomiast
farm milk cooler
fork out sth
gaussian shapes
Geminian
general journal voucher
gradient projection method
h?lder condition
haemophagocytic
heel kick
high power factor
hull efficiency
humannesses
Hvalbafjφrdhur
hypothalamic releasing factors
hyracid
IDEP
immuno-fluorescence
impulse cascade
infarctus
iproplatin
iridium disulfide
job-shared
kali-keratophyre
Kandana
keep of
kill the sea
lanthanin
larbowline
lecoes
lightning gap
livent
location label
LOTEM
makimonos
merseytravel
methyl phosphonate
mock-up test
modified sandwich testing
monkey flip
motor fuels
multilayer interconnection pattern
Nobel oil
nonproductive investment
out of mind
outside pressure
parameter of probability measure
PHOLIDICHTHYIDAE
protective switchgear
quarter of
rotary-disk pulsed extractor
rubber liquid
semelitude
Serratula lyratifolia
sex-role
shuttle-driver
skeed
stand to one's lick log
steel engraver
stripping angular distribution
stroessner
Thanbayagon
the calyx and receptacle of a persimmon
theoretical length of turnout
Thoraeus filter
traffic flow density
try to sweep back the Atlantic with a broom
tussis ferina
two-wheel drive planter
undecompounded
unmurder
useful numbers
userspace
varistor compensated circuit
venomization
vibration adaptation
West Indian satinwood
widowered
yearing
Zedolac