比放射量, 发射率

ROBERT SIEGEL, HOST: There are museums, and then, there are wonderfully specific museums. We're talking about such institutions as the American Toby Jug Museum, the German Watering Can Museum and, of course, the U.S. National Tick Museum. All of thes

发表于:2018-12-18 / 阅读(113) / 评论(0) 分类 2017年NPR美国国家公共电台6月

The capital will raise its automobile-emission standards on Friday, making them the strictest in the nation. The Beijing Environmental Protection Bureau said the move is expected to reduce auto pollution by 40 percent to better improve the hazardous

发表于:2018-12-19 / 阅读(89) / 评论(0) 分类 英闻天下

Diesel fuel in the US and the fumes from diesel engines are about to get a whole lot cleaner. As of today, the Environmental Protection Agency is requiring much of the diesel in the country to have 97% less sulfur in it. It's the start of a project

发表于:2019-01-07 / 阅读(204) / 评论(0) 分类 2006年NPR美国国家公共电台

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? If you're too tired to think straight, it might be because parts of your brain are already asleep at the wheel. A team of neuroscientists from Washington State Unive

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 Scientific American(十一)月

Using the Right Article What word appears most often in English? It's the, also known as the definite article. Its partner, the indefinite article a, is also among the top 10 most frequent words in English. According to Professor Elka Todeva of the S

发表于:2019-01-12 / 阅读(105) / 评论(0) 分类 2016年VOA慢速英语(三)月

Negotiators at the climate summit in Copenhagen last month failed to agree on a new climate change treaty to replace the current Kyoto Protocol before it expires in 2012. Jonathan Lash is president of World Resources Institute, an environmental polic

发表于:2019-01-13 / 阅读(119) / 评论(0) 分类 VOA标准英语2010年(一月)

India says it is satisfied with outcome of the recent climate summit at Copenhagen, which did not spell out specific targets for reducing carbon emissions. India is hailing the united position adopted by big developing countries at the summit. Anjana

发表于:2019-01-13 / 阅读(117) / 评论(0) 分类 VOA标准英语2009年(十二月)

李华正在兴致勃勃地给Larry将她去看医生的经过,没想到被Larry泼了一盆冷水。李华今天要学两个常用语,TMI和PDQ 。 LL: Oh, Li Hua, that is really TMI. I'm sorry you had to go to the doctor, but I really don't wan

发表于:2019-01-15 / 阅读(89) / 评论(0) 分类 美国之音《流行美语》

By Nancy-Amelia Collins Bali, Indonesia 13 December 2007 The head of the United Nations Climate Change Conference is warning that a deadlock between the United States and the European Union over greenhouse gas emission targets may derail the conferen

发表于:2019-01-16 / 阅读(134) / 评论(0) 分类 VOA常速英语2007年(十二月)

Briefing a news conference on Thursday, Xie Zhenhua, China's special representative on climate change, said the country is exploring emissions trading mechanisms. China now is piloting emission trading in seven provinces or municipalities, and the wo

发表于:2019-01-19 / 阅读(122) / 评论(0) 分类 2015CRI中国国际广播电台

For our 10th anniversary my wife and I vacationed in Hawaii, where we went snorkeling. After an hour in the water everyone got back on the boat, except for one beautiful young woman and me. As I conti

发表于:2019-01-29 / 阅读(126) / 评论(0) 分类 趣味英语

It seems like everyone is using Twitter these days. You know, sharing little messages with each other on phones and computers. It turns out that all these little messages, if you look at them all at once, become an easy way to find people, news and t

发表于:2019-02-05 / 阅读(92) / 评论(0) 分类 英语万花筒

According to Ric Edelman, author of Ordinary People, Extraordinary Wealth, the purpose of a rsum is not to get a job, it's to get an interviewyou will get the job. A rsum should not list all your skills, but rather tease the employer with your achiev

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

natality 生育 fertility 生育率 fecundity 生育能力 birth rate, natality rate 出生率 births 出生人数 parity 胎次 premature birth 早产 life birth 活产 stillbirth 死产 birth peaks 出生高峰 mortality 死亡 mortality rate 死亡率

发表于:2019-02-18 / 阅读(130) / 评论(0) 分类 实用英语

The purpose of a letter of applicationis to help the applicant obtain the job he is interested in. It should state clearly what position the applicant wants, and should tell what his abilities are and what he has to offer. It should provide a quick,

发表于:2019-02-18 / 阅读(139) / 评论(0) 分类 实用英语

1. Tell me about yourself! 对策:Keep your answer to one or two minutes; don't ramble. Use your resume summary as a base to start from.. 2. What do you know about our company? 对策:Do your homework before the interview! Spend some time online

发表于:2019-02-18 / 阅读(163) / 评论(0) 分类 实用英语

China is now on the front lines of efforts to develop energy sources that can balance the goals of sustaining economic growth and protecting the environment. Decisive action is needed to strengthen policy frameworks across the country to reach that g

发表于:2019-02-18 / 阅读(128) / 评论(0) 分类 cctv9英语新闻2015年

The capital will raise its automobile-emission standards on Friday, making them the strictest in the nation. The Beijing Environmental Protection Bureau said the move is expected to reduce auto pollution by 40 percent to better improve the hazardous

发表于:2019-02-21 / 阅读(138) / 评论(0) 分类 英闻天下

有人常会觉得小孩子学语言学得比大人快,为什么呢?因为小孩子学语言不像我们死记文法,苦背单字。他们就是用所谓的pick up,看在什么场合,别人用什么字,就一个一个把它记下来。这样

发表于:2019-03-05 / 阅读(155) / 评论(0) 分类 英语口语

Larry告诉李华他连续几天给他哥哥打电话,可是总也找不到他。 LH: Larry, 你那么急着找你哥哥,有要紧的事吗? LL: No, not really. I just want to chit chat. LH: Chit chat是什么意思啊? LL: To Chit Chat is to t

发表于:2019-03-12 / 阅读(222) / 评论(0) 分类 英语口语
学英语单词
a MJ
a. nutricia fibul?
a.a.gun
adamantanamine
ADC (analog-digital converter)
air weight flow rate
Alaska crab
algebraic conjugate
alkaline fermentation
apet-
arbekacin
ayfivin
bacterio
Ban Mae Ngao
banana plug
Blackfoot
bronchogenic spread
brookhaven national laboratory
brothera leana
bush-baby
cablese
cachectic infantilism
cause variable
centrosomal blephaloplast
Cooke County
cornuto
de-Stalinize
Desai.
diospyros kusanoi hay.
doppler resolution
downward closed
dry-steam drum
dynamo door latch pin
electropneumatic straight air brake
epidermoid cancer
episinus yoshidai
exchange table
familial hypophosphatemic rickets
first law of photochemistry
flake away
flicker signal
fruit antisaptic paper
gofer
graefe
Great Dunham
hot melt adhesive
Houston'muscle valves
hypertrophic angioma
insincerities
is that what you call it
isocamphor
item number (Item No.)
kroton
Kuz'movka
launch vehicle telemetry
license and permit bond
ligamenta gastrolienale
liver channel
llama
male pattern
maloy
matched phrase
McDonald County
multiplebeam
nested row-column designs
open loop phase response
Paleocharaceae
Paracatu, R.
Pexol
picoseconds
plastically deformed deposit
plumb
porous silicon carbide refractory
pretaxate
profamulus
professorial
Profit Table
programmed logic
pulmograde
quad clock driver
rabbitfish
rankachite
rayleigh's approximation method
redspot cotton
scaly winged
schefflera actinophyllas
soaming
sonique
Sotira
standard dimensions of navigation channel
steam demulsification number
synchrinizer
Tahli
term infants
terminal board
thenext
transport entity
underbody
upper atmospheric circulation
vacuum bottle
vacuum cleaner
Web-to-host