声发射传感器

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(281) / 评论(0) 分类 英闻天下

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Real-time information about whats happening in our bodies at the cellular level could be crucial for fighting cancer and other life-threatening conditi

发表于:2018-12-24 / 阅读(314) / 评论(0) 分类 Scientific American(十二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Electronics come in all shapes and sizesbut theres been a limit on their flexibility. Now, researchers say theyve created electronics that can be shape

发表于:2018-12-24 / 阅读(356) / 评论(0) 分类 Scientific American(十一)月

One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond

发表于:2018-12-24 / 阅读(294) / 评论(0) 分类 2017年Scientific American(二)月

She was a big, homely, overweight young woman, in her late 20s, maybe. No ring on her finger, so she was probably single. In fact, judging from her unfriendly demeanor, she probably had no boyfriend. And unless she started dieting and exercising regu

发表于:2018-12-31 / 阅读(375) / 评论(0) 分类 365个英语简短小故事

ASE Application Service Element 应用服务单元 ASE Amplified Spontaneous Emission 放大自发辐射 ASIC Application Specific Integrated Circuit 专用集成电路 ASF Advanced Streaming Format 高

发表于:2019-01-03 / 阅读(359) / 评论(0) 分类 电信英语

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(446) / 评论(0) 分类 2006年NPR美国国家公共电台

By Doug Levine Washington 27 June 2007 It's been more than 15 years since saxophonist Joshua Redman won first prize at the Thelonious Monk International Jazz Competition. That honor proved to be a worthwhile stepping stone, as he went on to record mo

发表于:2019-01-13 / 阅读(342) / 评论(0) 分类 2007年VOA标准英语(六月)

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(288) / 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(328) / 评论(0) 分类 VOA标准英语2009年(十二月)

Chris Hillman Edward Pederson's At Edwards BarnChris Hillman and Herb Pedersen had bluegrass in common when they met as teenagers in Los Angeles back in the early '60s, but the two didn't make much music together until years later. Hillman first came

发表于:2019-01-13 / 阅读(312) / 评论(0) 分类 VOA标准英语2010年(十二)月

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(312) / 评论(0) 分类 VOA常速英语2007年(十二月)

LOURDES GARCIA-NAVARRO, HOST: If you're familiar with the band Disturbed, you're probably used to hearing them sound like this. (SOUNDBITE OF DISTURBED SONG, INSIDE THE FIRE) GARCIA-NAVARRO: But last year, the band softened its sound when they covere

发表于:2019-01-16 / 阅读(301) / 评论(0) 分类 2017年NPR美国国家公共电台1月

Well, I was born with a rare visual condition called achromatopsia, which is total color blindness, 我出生在一个色彩极少的世界,世界只有明暗之分,这叫做全色盲 so I've never seen color, 所以我不知道什么是颜色, a

发表于:2019-01-18 / 阅读(351) / 评论(0) 分类 TED演讲国际问题篇

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(305) / 评论(0) 分类 2015CRI中国国际广播电台

Cat lovers of the world, rejoice! You finally have the chance to understand what your pet is saying thanks to a smart collar that can interpret feline meows and translate it into human speech. Aptly named Catterbox, the collar supposedly has a digita

发表于:2019-02-04 / 阅读(345) / 评论(0) 分类 实用英语

Abadie's Sign Chinese阿巴迪征(跟腱受压无感觉,见于脊髓痨) Abaptiston Chinese安全开颅圆锯 abarognosis Chinese压觉缺失 abasia astasia Chinese立行不能 abasia Chinese步行不能 abdominal reflex Chinese腹壁反射 abduction Chinese外展 abiotrophy Chinese生活力

发表于:2019-02-07 / 阅读(345) / 评论(0) 分类 英文语法词汇

The Way It Goes (Acoustic) - Passenger One man's home is another man's journey Stars shine late and the sun shines early One man's straight and another man's curly It's just the way it goes One man's trash is another man's treasure Rummaging around i

发表于:2019-02-18 / 阅读(263) / 评论(0) 分类 英文摇滚歌曲

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(307) / 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(337) / 评论(0) 分类 英闻天下
学英语单词
acaulospora trappei
all weather body
amputation through finger
Argyropyrite
asbjorn
atmospheric depression
auric potassium iodide
auricomous
autogenic drainage
Baetic
behn
Billingshurst
binominal names
Binswangen
branched chain compound
Briggsia longicaulis
catch indicator
cavatinas
channel-attached device
chohan
chylifactory
classical theory of distribution
computer-integrated manufacturing system
consignatary
constant temperature and humidity machine
corpses-to-be
correlation ultrasonic flowmeter
cosmic mechanism
crawled in
Cyrus Hall McCormick
earth heat cement
elsewhere-in
employee's benefit fund
equaled
Fatsia polycarpa
film foil
finish-forging
fortunizes
genus coriandrums
gigantically
graphical weeping point (G.W.P.)
Guérin-Kouka
hydraulic pumping
ignant
integrated barge train
interfector
kroloff
li keqiang
liangchiashan limestone
lighting and ventilating shaft
Marks and Numbers
mathematic routine
MotilixLoperamide
Myrtiformis
negages
net-minders
non-Abel extention
NWSC
objectifiers
odonto-adamantoblastoma
one-gene heterosis
ontario age
Oryol
out-rove
owsen
package rack
packet analyzer
pathological amputation
phorbeia
plodges
pluots
production index unit cost
program change package
progressive block sequence
random primer
remark
retinopathy of toxemia pregnancy
rhombic distortion
right context sensitive language
Rukopol'
salivary (gland) chromoosome
sanderling
schweizers
Scleria sumatrensis
Singleton, Mt.
sled dog
sodium barbiturate
spaceplanes
spondyloschisis
stallkamp
sternepisternum
sting out
talk sense
tandemer
tennis toe
tranxilium
tubing clip
type of decay
vaginae synovialis intertubercnlaris
vesical rupture
wind-mixed isothermal layer
zone of vegetation