单频二氧化碳激光器

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(443) / 评论(0) 分类 上海牛津初中英语八年级

[00:05.07]Unit 22 Environmental Protection Culture Corner [00:10.88]The World Wildlife Fund [00:13.93]The World Wildlife Fund (WWF) [00:16.91]was found by Sir Peter Scott in 1961. [00:20.98]His goal was to help protect the Earth's [00:23.39]natural e

发表于:2018-12-13 / 阅读(154) / 评论(0) 分类 北师大版高中英语模块8(选修)

[00:00.80]When the atmospheric concertrations [00:03.16]of these gases increase, however, [00:05.84]more heat is trapped and the Earth's [00:07.92]temperature rises. [00:10.37]Over the last 100 years, [00:13.01]the global average temperature [00:15.1

发表于:2018-12-13 / 阅读(133) / 评论(0) 分类 北师大版高中英语模块8(选修)

Unit 8 [00:02.90]Save Your World!What Is Garbage?Garbage is everything that you throw away. [00:13.06]What do we do with garbage?We bury or burn most garbage. [00:19.54]Burying garbage is quick and easy but uses a lot of land. [00:26.07]Most land nea

发表于:2018-12-17 / 阅读(271) / 评论(0) 分类 河北加拿大版初中英语读物

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Whether it's for streaming Netflix or sharing files, we're gobbling up more and more dataand we want it faster. But even shooting data with lasers over fiber-o

发表于:2018-12-24 / 阅读(125) / 评论(0) 分类 Scientific American(五)月

Listen this way听力教程第二册-17

发表于:2018-12-27 / 阅读(196) / 评论(0) 分类 Listen this way听力教程

Science and technology. 科技。 Carbon capture and storage. 碳的收集和储存。 A shiny new pipe dream. 闪亮的管子 崭新的梦想。 Capturing the carbon dioxide from power stations is not hard. But it is. expensive. A new project in Nor

发表于:2018-12-31 / 阅读(100) / 评论(0) 分类 经济学人科技系列

By Greg Flakus Scientists in Texas are trying to find a way of reducing carbon dioxide air pollution by capturing the gas, compressing it and then putting it underground. This technique could also yie

发表于:2019-01-03 / 阅读(97) / 评论(0) 分类 VOA2004(下)--健康科技

Multimode Optical Fiber(S) Multimode fibers, with much wider cores than single mode fibers, allow light to enter at various angles, and reflect (bounce off of) core-clad boundaries as electromagnetic

发表于:2019-01-03 / 阅读(123) / 评论(0) 分类 电信英语

You might think it's your colleagues or the pressures of work that's getting you down at the office, but new research suggests it could well be the air you're breathing instead. Scientists in the US have found that the concentration of carbon dioxide

发表于:2019-01-16 / 阅读(120) / 评论(0) 分类 阅读空间

Oil is good and bad. Its good because it helps our energy needs. Its bad because it causes pollution. Oil is a fossil fuel. Burning it produces carbon dioxide (CO2). This is one of the biggest causes of global warming. There isnt much oil left in the

发表于:2019-01-21 / 阅读(109) / 评论(0) 分类 纯正英语一分钟

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(135) / 评论(0) 分类 农业与发展

Australia is preparing to introduce technology that allows algae to capture half or more of the greenhouse gases emitted by a power station. The micro-algae thrive on carbon dioxide, producing food for livestock as well as biofuels and material for

发表于:2019-02-12 / 阅读(103) / 评论(0) 分类 VOA标准英语2009年(九月)

Drivers in the eastern United States may soon start paying for the pollution made by their motor vehicles. Nine eastern states and Washington, D.C. are launching a system of pricing the carbon dioxide produced from burning gasoline and diesel fuel. M

发表于:2019-02-14 / 阅读(122) / 评论(0) 分类 2019年VOA慢速英语(一)月

模仿句子:Now there's long been talk about peak oil, the point of which the amount of hydrocarbons available to us starts an inexorable downward decline. 翻译:很久前人们就提到过石油峰值,即在达到某一峰值时,可供我们

发表于:2019-02-16 / 阅读(109) / 评论(0) 分类 英音模仿秀

Curbing climate change The deepest cuts 控制气候变化 一切为了减排 Our guide to the actions that have done the most to slow global warming 我们的行为指南已经最大限度减缓了全球变暖 ON SEPTEMBER 23rd 120-odd presidents an

发表于:2019-02-16 / 阅读(133) / 评论(0) 分类 经济学人要闻

新GRE阅读文章内容复杂程度降低了,但是新GRE阅读变化在于逻辑复杂程度升高。考生们想要获得新GRE阅读理解的高分,则更加注重文章的内在联系。这反映了ETS对于影响研究生阶段学术成功的

发表于:2019-02-17 / 阅读(110) / 评论(0) 分类 GRE英语

There is a new substance that is harder than diamond. It's called Q-carbon, and it was created by researchers at North Carolina State University. 北卡罗莱纳州立大学的研究人员研发出一种名为Q-碳的新物质,其硬度比钻石还高

发表于:2019-02-18 / 阅读(97) / 评论(0) 分类 阅读空间

There is a new substance that is harder than diamond. It's called Q-carbon, and it was created by researchers at North Carolina State University. 北卡罗莱纳州立大学的研究人员研发出一种名为Q-碳的新物质,其硬度比钻石还高

发表于:2019-02-19 / 阅读(156) / 评论(0) 分类 英语新闻

STEVE INSKEEP, HOST: At a climate meeting in Poland this week, almost 200 countries are trying to reach a deal - a deal to dramatically reduce carbon emissions. A recent U.N. report finds that may not be enough to avoid the most dangerous climate eff

发表于:2019-02-21 / 阅读(115) / 评论(0) 分类 2018年NPR美国国家公共电台12月
学英语单词
2-chlorovinyldichloroarsine
accessory adrenal gland
acetic
agnations
Allen, Ethan
andrew jacksons
apodeme
artificial refractory insulating oil
auditory duct
be thick on the ground
bhunas
biaxial sign
box-coupling
bursae subcutanea acromialis
campos do jordao
centerx central office
chemohydrodynamics
clear superiority
clear wood
club terms
coal seam pitch
conservancy of sanitation
cryptocotylar
cryptographic system
Damncanthol
digital versatile discs
do ... duty
Do me Good
door widely open
ear doctors
Elaeagnus yunnanensis
ephemeromorph
episcopable
epoxy plastic
exhaustive search control
falsification of money
Fanuatapu I.
fardel-bouna
form of action form
front-load
fukuokas
fusobacterium necrophrum
Glaxo
Gleiwitz
go snacks
haunchup
high temperature brazing gas cooling furnace
Hot Creek Range
humanistic administration
indic perchlorate
interdiction bombing
international studies
Kumagaya
left justified
mandshurine
McCutchenville
member of labor union
mesurol
milli-metre
minfar
monochromatic display
multiprogramming executive system
murked
narasin
no risk till on board
Notes to Treatise on Febrile Diseases
numerical constant
oppresses
osteoblasts
parataxic
phase terminal voltage
phenylacetylglycine
point-and-clicks
Poussan
property right
protohymenium
quipper
radiculotomy
recompensating
Score Bay
second-order viscoelasticity
segment information
spintry
Starovirivka
stava
straitness of lumbar vertebrae
stress rupture testing machine
tandem center
tax-exempt interest
Tetraplodon
the gulf below
times-three register
tin tetrachloride
total pulmonary resistance
tuckerman
us -necked
Velyka Hlusha
well favoured
whanganui
William Green
with the understanding that
Yugoslavians