[化] 氯化三苯锡

WORDS AND THEIR STORIES - Tinpan Alley By Susan Kelen Broadcast: Sunday, October 10, 2004 Now, the VOA Special English Program Words and Their Stories. Today, we tell about the expression, tinpan alle

发表于:2018-12-01 / 阅读(281) / 评论(0) 分类 WORDS AND THEIR STORIES

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得 10 到 30 积分的奖励 ! Thank you !

发表于:2018-12-04 / 阅读(219) / 评论(0) 分类 冀教版高中英语必修二

Mr. President, Mr. Speaker, Members of the Congress of the United States: The gravity of the situation which confronts the world today necessitates my appearance before a joint session of the Congress. The foreign policy and the national security of

发表于:2018-12-04 / 阅读(392) / 评论(0) 分类 名人演讲

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(153) / 评论(0) 分类 VOA标准英语2014年(六月)

'Rin Tin Tin' Recounts Dog's Rise to Stardom Susan Orlean, author of Rin Tin Tin: The Life and the Legend, has vivid memories of the German Shepherd from her 1950s childhood, when the animal performed daring rescues on a television series. But as she

发表于:2018-12-16 / 阅读(134) / 评论(0) 分类 VOA标准英语2012年(一月)

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(158) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(134) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(112) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(104) / 评论(0) 分类 英语听力文摘 English Digest

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(154) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(157) / 评论(0) 分类 Scientific American(十一)月

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(147) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(207) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(143) / 评论(0) 分类 自然百科2009年

New Yorkers Take Transit Woes in Stride NEW YORK Life regained some semblance of normalcy on Thursday for New Yorkers affected by superstorm Sandy, as public transportation started to come online and millions of people returned to work. But for those

发表于:2019-01-31 / 阅读(157) / 评论(0) 分类 英语新闻

VIENNA, July 6 (Xinhua) -- The Austrian Olympic Committee (OOC) has nominated 69 athletes to take part in the 2012 London Summer Olympic Games, the APA reported on Friday. This will make it the smallest team since the 1976 Montreal Games where 64 Aus

发表于:2019-02-02 / 阅读(200) / 评论(0) 分类 英语新闻

VIENNA, May 9 (Xinhua) -- The Austrian Olympic Committee (OeOC) nominated a further 13 athletes for its 2012 London Olympic Games team on Wednesday, bringing the total to 37 athletes across 12 sporting disciplines. OeOC President Karl Stoss said he p

发表于:2019-02-02 / 阅读(220) / 评论(0) 分类 英语新闻

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(138) / 评论(0) 分类 地道美语播客

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(294) / 评论(0) 分类 英语新闻

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(239) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
AADA
act of unlawful interference
aerial communication wire
agrobiologic
apparent diurnal motion of heavenly body
attestate
baconburger
basifungin
battery anti-aircraft battery
be square
biskupin
Calophyllum changii
cap refill
carburation by evaporation
case primer
clutch operating lever
commoditized
comparative experiments
consolidation point
Corydalis pseudofilisecta
crab tree
cum slut
discandium
donnered
Edison
Eflâni
emergent state
external procedure reference
extra-heavy wash rod
fitter's hammer
foreking
foth
function performance
furnace rake
Fuxin
go-out
halodendron
handling facility
Haviland Bay
high impedance electrode
ichthyotoxicology
know all the ins and outs of sth
knuckle-tooth
l'altro
lined pipe
lymphatic surgery
Manbulla
Manning Str.
manual temperature control
mashie niblicks
mast color paint
memory footprint
menorca
Minina, Poluostov
minitram
modeling framework
mordy
obstruction to vision
overlay denture
P substance
parrotiopses
patent license-agreement
pharmaceutical manufacturing
Phillipsia
phoneticss
piricular(r)in
plant for construction
polyubiquitin
public library
real answer
realism rendering
recife
recomposted
replacement processing
rigidity distribution
severest
single-roller crab
small angle grain boundary
sokemen
source pack
spectrographical
stern-wheeler
street cleanser
sugar-rush
take an average
tartakov
tattooings
tent-pegs
tercia
the poor relation
Theile's muscle
top blow oxygen lance
toppies
triodethyristor
ultralight airplane
unallowed expenditure
unified standards
uninterruptable power system
voltage-doubling circuit
wirral pen.
yestertide
zirconia corundum block