音标:[di'redtid'enədʒi] ;
=beam weapon

STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. Today we tell about the history of radio and the latest technology. (MUSIC) SHIRLEY GRIFFITH: Our story begins in Britain in eighteen seventy-three. A scientist named James Max

发表于:2018-12-01 / 阅读(157) / 评论(0) 分类 2010年VOA慢速英语(十二)月

Broadcast: Jan 15, 2003 By Jerilyn Watson This is the VOA Special English Health Report. Many millions of people around the world suffer from problems of the small intestine. Bleeding from abnormal gr

发表于:2018-12-07 / 阅读(175) / 评论(0) 分类 VOA2003(上)-健康资讯

New Tool Maps Buildings' Energy Efficiency 新工具提高建筑物的能源效率 Architects, engineers and building managers will soon be able to quickly collect data about building interiors that once took weeks to measure and process. A backpack-

发表于:2018-12-08 / 阅读(105) / 评论(0) 分类 VOA标准英语2015年(二月)

New Device Detects Pilot Blackouts WASHINGTON During certain maneuvers, jet fighter pilots sometimes experience loss of vision and even loss of consciousness. Although short, these so-called blackouts can have tragic consequences. An Israeli company

发表于:2018-12-16 / 阅读(142) / 评论(0) 分类 VOA标准英语2015年(六月)

OK, great, we smell vibrations. How? All right? 好吧,我们闻到的是震动。怎么闻到呢? Now when people ask this kind of question, they neglect something, which is that physicists are really clever, unlike biologists. 当人们问这个问

发表于:2018-12-19 / 阅读(112) / 评论(0) 分类 TED演讲教育篇

Do you like working up a sweat? Or do you feel like maybe sweat should work for you? Well, hold on to your sudoriferous glands. Because researchers have designed a device that could someday produce power from your perspiration. The schvitzy scheme wa

发表于:2018-12-24 / 阅读(125) / 评论(0) 分类 2014年Scientific American(八)月

(THEME) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Faith Lapidus with the VOA Special English program EXPLORATIONS. You are listening to our program today on a radio. Almost no communication would exist in the world without the electromag

发表于:2019-01-03 / 阅读(184) / 评论(0) 分类 2018年VOA慢速英语(九)月

The One With The Giant Poking Device 本集简介: Phoebe avoids going to the dentist because whenever she goes, someone dies. Joey tells Chandler about Janice kissing her husband, and Chandler confronts her. She must chose between the two men she l

发表于:2019-01-07 / 阅读(160) / 评论(0) 分类 老友记(六人行)

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Last month the journal Science reported that a Swedish company was planning on using the body heat generated by commuters in a Stockholm train station to

发表于:2019-01-08 / 阅读(158) / 评论(0) 分类 Scientific American(二)月

Scientists know all about the therapeutics qualities of blue and red light. But until know, sufferers of acne have to go to hospital to benefit from it. But Lumie, the manufactures of this new LED device hope it would see light therapy moving to the

发表于:2019-01-09 / 阅读(171) / 评论(0) 分类 英语杂谈

Motor-Free Device Reduces Stress from Walking 新型可穿戴附加设备有效减轻腿部肌肉的负荷 Devices that help people walk were once thought to be difficult, if not impossible, to design. Until recently, such a device required electrici

发表于:2019-01-12 / 阅读(131) / 评论(0) 分类 2015年VOA慢速英语(四)月

Plant Your Mobile Charger in the Dirt 智利学生研发植物充电设备--花草也可做电源 Three university students in Santiago, Chile have developed a plant-powered device to charge their mobile phones. 在智利首都圣地亚哥, 3名智利大

发表于:2019-01-12 / 阅读(168) / 评论(0) 分类 2016年VOA慢速英语(一)月

Device Keeps Internet On When Power Goes Off Erik Hersman and his team in Nairobi have created what they say is the first router made especially for Africa. It's battery powered and rugged. And it's gaining attention in Europe and the United States.

发表于:2019-01-14 / 阅读(176) / 评论(0) 分类 VOA标准英语2013年(五月)

智利学生研发另类充电设备 小小植物也能轻松为手机充电 Three Chilean students got the idea for a plant-powered device to charge their cellphones, while sitting in their school's outdoor courtyard during a break from exams, with

发表于:2019-01-14 / 阅读(141) / 评论(0) 分类 VOA标准英语2016年(一月)

美国研究人员尝试从微风中获取能源 Solar chargers are effective only when the sunlight is relatively strong,but researchers at the Construction Engineering Research Laboratory in Illinois turned to the wind as another natural source of

发表于:2019-01-14 / 阅读(136) / 评论(0) 分类 VOA标准英语2015年(十二月)

Scientists Develop Motor-free Device That Eases Walking Strain 科学家发明无动力助行走设备 Devices that help people walk were once thought to be impossible to design without some kind of auxiliary power. But U.S. scientists at Carnegie Me

发表于:2019-01-14 / 阅读(121) / 评论(0) 分类 VOA标准英语2015年(四月)

印度政府日前推出了一款世界上最便宜的笔记本电脑,售价仅为35美元。据印度人力资源开发部长介绍,这款低成本的触摸屏电脑的主要针对用户为学生,计算机的主板、芯片、处理器、内存和

发表于:2019-01-19 / 阅读(204) / 评论(0) 分类 阅读空间

During her speech, Pritzker explains the central message of her visit to China and the U.S. side's approach to environmental protection. The central message of our visit is with responsible partnership we will do more business together and in doing s

发表于:2019-02-06 / 阅读(186) / 评论(0) 分类 英语新闻

The movement of finger swipes may soon be able to charge our cellphones. 手指滑动的动作可能很快就可以为我们的手机充电了。 Researchers at Michigan State University have created a new way to harvest energy from human motion, usi

发表于:2019-02-18 / 阅读(179) / 评论(0) 分类 英语新闻

Dialogue 1 Jingjing: Hey, Mark. You looked a little lonely, so I thought I'd come talk to you. 京晶:嘿,马克。你看起来有点儿孤单,所以我过来和你聊聊天。 Mark: Lonely? You couldn't see that I had my head in a book? I was

发表于:2019-02-19 / 阅读(119) / 评论(0) 分类 英语PK台
学英语单词
aard-vark
ADTU
affordability
antas
axis out of line
be branded with
be made for each one another
Bionaz
Blytonesque
canalis condylicus
canonical order
Cassini projection
Catalzeytin
chemistry of Tethys
choke collars
cinaebene
coil and gravity starter
combinatorial product
Commissura grisea anterior
corporate inversion
cylinder expansion
data analyse
Eiler Rasmussen, Kap
enforcement arrangement
Erskine May
expert criteria
fall zone
foreign-area
fracture by cleavage
galianconism
garry
genetic deafness
Gironniera
glossolalist
Gorgona, I.
Grand Teton
h(a)ematochrome
heptacosadienes
Holywood, John
house power
Hungaric
hydrophysocele
immensest
infant death rate
joret
live line insulator tester
low-conductivity
main cold store
marib
mcgowin
measured overshoot
measuring electronics
mercede
micro metrics
mid-cut
minimum pour point
mode shape density
monoarachin
monohull ship
NC machine tools with automatic tool changer
osteotropic
paccar
palpal base
PCE/NCE
perfect octave
perth and kinross
phase orbit
phonatory organ
phyllosticta boehmeriae
pivalate
polymetamorphisms
polyode
PRTA
Pāshāpur
real hyperbolic space
rent-a-mob
resile
ring key
risky assets
rixatrix
RLSD
sarcopyramis napalensis delicata
Sclerotium hydrophilum
seasonal prevalence
secondary yield
skin graft
slim-bodied
solovki
spinal fluid rhinorrhea
stupid as a coot
Sulfanthrolum
supraorbital arch (supraorbital margin)
thiazol
transplanting injury
traversal cofferdam
triadic mean
value-added system
variance between clusters
visited with
water trumpets
wentle
workabler