[化] 氯化四苯┾

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(219) / 评论(0) 分类 VOA标准英语2014年(六月)

当你让全场观众起立牵手会发生甚么事?混乱,没错!至少当简?麦戈尼格尔(Jane McGonigal)试着教TED听众玩她最喜欢的游戏时是这样的。接下来,当多人混战时,你猜想还会怎样呢?

发表于:2018-12-09 / 阅读(285) / 评论(0) 分类 TED公开课:会心一笑

I've seen her face before, I've seen those eyes from long ago, They're reaching inside my soul I wish she could see my heart beating for her. What if I were to let you know, Would it be too much? But I can't wait to find if I'm invisible. (I'm)Asking

发表于:2018-12-16 / 阅读(187) / 评论(0) 分类 节奏布鲁斯

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(231) / 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(196) / 评论(0) 分类 Scientific American(三)月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(243) / 评论(0) 分类 Scientific American(一)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(187) / 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(179) / 评论(0) 分类 英语听力文摘 English Digest

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(230) / 评论(0) 分类 医务英语

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(228) / 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(242) / 评论(0) 分类 Scientific American(十一)月

A court in Australia has released the identity of a man accused of lighting a fire in the southeastern state of Victoria. Brendan Sokaluk, faces charges of arson causing death, intentionally lighting a bushfire and one count of possessing child porn

发表于:2019-01-13 / 阅读(162) / 评论(0) 分类 VOA标准英语2009年(二月)

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(221) / 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(273) / 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(210) / 评论(0) 分类 自然百科2009年

56 自然原因导致夏季食物中毒比率偏高 DATE=6-12-01 TITLE=AGRICULTURE REPORT - Food Poisoning in Summer BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(228) / 评论(0) 分类 科技之光

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(196) / 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(374) / 评论(0) 分类 英语新闻

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(256) / 评论(0) 分类 万物简史

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(346) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
acmes
ad dayr
AFJ
alopecia mechanica
amca
amorces
angevine
Arabophile
atomic number 6s
Aunay-en-Bazois
bent bar
blast amount meter
Bol'shoy Sabsk
boxwood folding rule
carline
carrier frequency wire broadcasting
chirrup
conditional privilege
contention for shared recources
crass
cricondenbars
culicoides (culicoides) indianus
dhcp client
disease-causings
dual load wheel
edge milling machine
enrichers
Ethanesulfonate
expectancy value theory
face threads
folding top bow
fuel pump coupling
half tide
hardening effect
hectivity
Hestehoved
hooklet
horse-hairs
hydro-disperser
Icadambanauan I.
Ik, Ozero
ill-uses
infectings
job identification
know loss
krulchukor
large scale condition
life saving net
Maastricht Treaty
macarro
magnetic latitude
majority rule
medical arrangement
microbranch
midskilled
mineral non-metallic
molecular rearrangement
nesosilicate mineral
net assessable income
net authentification
parapropanol
phytolacca acinosas
plume oneself as
polycrystal
prefabricated member
prison-breaking
probabilistic parameter
productivity trend
propagation conditions
quasipower series
randomized controlled trial
real-time clock executive
reflecting power
reproduction or multiplication of plant or animal
robic
self-acting clutch
single-cycle system
slowhound
spina bifidas
spring cresses
submicro-morphological feature
subsporin
supersunernova
tape code
the lowdown on low noise amplifiers
thermoionization
thoracic dissecting forceps
Tia Maria
tinted rubber
torsion-free
tread mill
Twofold B.
tympanitic area over gastric bubble
undervulcanization
universal chain
us issue
vesicoureteral regurgitation
Vijay Pillai
voteworthy
Wal-lerian degeneration
water sprinkler tank
Zelaya, R.