[冶] 氩氧精炼法

CHAPTER TWO Reading POLLUTUO FIGHTERS [00:09.90]Judy is collecting some facts for a class project on pollution. [00:18.44]She is interviewing Doctor Ray,a scientist,about trees. [00:27.51]Judy:Why are you so interested in trees,Doctor Ray? [00:38.16]

发表于:2018-12-01 / 阅读(522) / 评论(0) 分类 上海牛津初中英语八年级

Can Oxygen Be Toxic?氧气有毒吗? In order for us to live we must have oxygen, so how can it be bad for us? Today we explain how oxygen can be toxic. 氧气是我们生存所必需的,所以它怎么会对我们有害呢?今天我们来解释为

发表于:2018-12-28 / 阅读(179) / 评论(0) 分类 初学者听力文摘精选

By Jim Malone Washington 25 October 2007 The lengthy and complicated process of choosing the next president of the United States begins in early January when voters attend party caucuses and cast ballots in primaries to select the presidential nomine

发表于:2019-01-07 / 阅读(216) / 评论(0) 分类 2007年VOA常速英语(十月)

By Jim Teeple Jerusalem 17 December 2007 After seven years, Israeli and Palestinian negotiators are talking once again. That development came at the end of 2007, a year of turmoil and transition which saw the Palestinian territories split, politicall

发表于:2019-01-07 / 阅读(251) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Naomi Schwarz Dakar 21 December 2007 Rebels and government troops in Ivory Coast are set to begin the long-awaited disarmament process on Saturday, a critical first step before forming a new national army is the divided country. Ivory Coast Presid

发表于:2019-01-07 / 阅读(204) / 评论(0) 分类 VOA常速英语2007年(十二月)

This is Scientific American's 60-second Science, I am Karen Hopkin. This'll just take a minute. Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources, including fossil fuel production and even

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's Sixty-Second Science. I'm Christopher Intagliata. Got the minute? A couple million years ago, mammoths migrated north from Africa to colonize Eurasia. Sometime around then a massive ice age kicked inand it was stay warm

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 Scientific American(五)月

UNIT 4 [00:03.08]Lessons 25~32 [00:08.05]Look into Science! [00:11.89]Lesson 25: [00:16.64]Keep the Candle Burning!Science is so interesting! [00:23.72]I'm sure you'll like this experiment! [00:28.68]When you do this experiment,you will learn somethi

发表于:2019-01-09 / 阅读(354) / 评论(0) 分类 河北加拿大版初中英语

[00:02.44]Unit 21 Human Biology Warm-up [00:07.39]Exercise 2 Listen and guess which parts of [00:11.04]the body of being described. [00:13.00]Which words help you to decide. [00:16.79]1 This organ weighs about a kilo [00:19.77]and is made up of two s

发表于:2019-01-10 / 阅读(447) / 评论(0) 分类 北师大版高中英语模块7(选修)

[00:00.00]Unit 29 [00:04.58]Task:teach a practical skill to others [00:08.49]2 b)Listen and check.Were you surprised [00:12.75]by any of the instructions? [00:17.13]The most common circumstances in which you [00:19.69]might have to resuscitate someon

发表于:2019-01-10 / 阅读(278) / 评论(0) 分类 北师大版高中英语模块10(选修)

Grab my hand take one step Come with me no regrets 'Coz we'll fly higher than what you can imagine When your heart is mine, anything can happen You're my baby I know you hear this song No need to worry about us You ain't doing nothing wrong Coz latel

发表于:2019-01-14 / 阅读(152) / 评论(0) 分类 节奏布鲁斯

BBC Learning English 6 Minute English Jargon Busters Yvonne: Hello, this is '6 minute English' - I'm Yvonne Archer William: And I'm William Kremer. Hello! Yvonne: Thanks for joining me, William! Now today, we're going to do a bit of glossing, play i

发表于:2019-01-16 / 阅读(141) / 评论(0) 分类 六分钟英语

LULU GARCIA-NAVARRO, HOST: It's not every day that scientists announce a new season. But that's what ocean researchers just did on the west coast. They say waters off Oregon, Washington and California now have a whole season when the oxygen level on

发表于:2019-01-17 / 阅读(167) / 评论(0) 分类 2018年NPR美国国家公共电台10月

On June 3rd, a train loaded with highly volatile crude oil derailed just outside the small town of Mosier in Oregons Columbia River Valley. More than 40,000 gallons of crude spilled out of the train. Some burned away in a 14-hour long fire at the sce

发表于:2019-01-17 / 阅读(183) / 评论(0) 分类 2016年Scientific American(十)月

凭借在iTunes和MySpace的成功,来自美国加州的流行女歌手科尔比凯拉特(Colbie Caillat)的处女专辑《Coco》一经发行便得到了很多歌迷的关注。在美国上市第一周,这张《Coco》共售出5万1千张,在本周的Billboard 200专辑榜中跻身前五名. 在没有与唱片公司签订合约之前

发表于:2019-01-23 / 阅读(263) / 评论(0) 分类 音乐咖啡厅

Colbie Caillat-Oxygen I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边

发表于:2019-02-02 / 阅读(121) / 评论(0) 分类 好听的英文歌曲

Oxygen therapy can bring drug-free relief to many Vidushi Sinha | Washington, DC 15 December 2009 A new study shows that breathing pure oxygen can considerably lessen the agony experienced with severe headaches Cluster headaches are described by suff

发表于:2019-02-06 / 阅读(247) / 评论(0) 分类 VOA标准英语2009年(十二月)

A man enters a barbershop for a shave. While the barber is foaming(涂上泡沫) him up, he mentions the problems he has getting a close shave around the cheeks. I have just the thing, says the barber, taking a small wooden ball from a nearby dra

发表于:2019-02-08 / 阅读(197) / 评论(0) 分类 趣味英语

By Challiss McDonough Cairo 11 March 2008 Many Arabs say recent violence in Gaza and Israel is placing the Middle East peace process in jeopardy again. VOA Middle East Correspondent Challiss McDonough reports from Cairo the process is under review ah

发表于:2019-02-08 / 阅读(196) / 评论(0) 分类 VOA标准英语2008年(三月)

I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边的每个人都能展颜

发表于:2019-02-20 / 阅读(150) / 评论(0) 分类 好听的英文歌曲
学英语单词
adjusting-valve
antenna current measurement
automatic vending
axillary fossas
back at one
baldacchinoes
bloten
blowing away
Boeica
bonne mineau mauvais jeu
Boston's test
break ... fast
Calvinise
ceramic fiber
cessnocks
Chilanga, Mt.
church-state
conflicting publication
consubstantiating
contractual transfer
Cyclobalanopsis fleuryi
demoulin
diagonal crossed
diametric
diethylene glycol diethyl ether
differential air thermometer
discussion list
Djako
double end spanner
epeirogenetic
exposure unit
extend flip-flop
factor proportion
fire insurances
first - hand account
frat house
full face finish
fumic
genus zeas
granatelli
grangy
gyrineum gyrinum
hairy hedgehogs
hibernating animal
hydrogen cooling system
in vitro conservation
insulator rotator
keepes
microporous film
milk sherbet
molecular sieve generator
multimethodology
nasals
nicalloy
nonvolatile fuel
nonwealthy
oak-leaved
okinawensis
on level
on-coming wave
oral personalities
Orongo
playingfield
pyritise
radioactive iodine test
re-energizing
rhodite
sand cloud
screw tube
sebotropin
self-saturating rectifier
sentelle
serangium yasumatsui
sickle shaped oil passage
signal level meter
silicon steel sheet insulating machine
snow-cap
so much for
sporocyst
spring breaks
ST_time_long-periods-of-time
subcadmium
talent for
temperature aesthesiometer
textflow
the International Electrotechnical Commission
three-dimensional storage
tin god
tone signal
tractus thalamoparietales
trainsful
tralatitious
transition flight path
tube-like
undressed warp
UV-9
vapor-pressure osmometry
weakly stationary moving average
with a slam
Work disk
Yus'vinskiy Rayon
Zharëza