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Powered Exoskeletons Give Assistance in Walking, Lifting Powered suits that could help paralyzed people walk and others lift and carry heavy loads with ease have been an inventor's dream since late 19th century. But they had to wait until the 21st ce

发表于:2018-12-16 / 阅读(268) / 评论(0) 分类 VOA标准英语2015年(七月)

Podcast is sponsored from the people of American Chemistry, who provide the plastics, medicines, and innovations that make life modern. Learn more at americanchemistry. com. This is Scientific American's 60-Second Science, Im Karen Hopkin. This will

发表于:2018-12-24 / 阅读(238) / 评论(0) 分类 Scientific American(七)月

National Biodiesel Day is a day the biodiesel industry celebrates the role of the vegetable-based fuel in helping to tackle environmental problems. It takes place on March 18, which is the date of Rudolf Diesels birthday. He invented diesel in 1912.

发表于:2018-12-29 / 阅读(219) / 评论(0) 分类 世界节假日博览

With rising fuel prices, more attention is turning to biofuels. But (the) use of food crops for biofuel raises the concern of food shortages. But one non-food biofuel source is gaining attention. Just inland from the southern Mozambique beach resort

发表于:2018-12-30 / 阅读(377) / 评论(0) 分类 国家地理2008年

As an alternative to expensive helicopters or traditional jets, some law enforcement agencies are experimenting with lightweight craft that stay airborne using just a parachute. Steve Mort | Palm Bay, Florida 01 January 2010 The Palm Bay Police Depar

发表于:2019-01-07 / 阅读(394) / 评论(0) 分类 VOA标准英语2010年(一月)

By Yi Suli Carl's Corner, Texas 03 October 2006 watch Carl's Corner report Carl's Corner in the southwestern state of Texas used to be an old-fashioned truck stop. Today it is a city in its own right, a haven for truckers passing by, a frontier for

发表于:2019-01-07 / 阅读(332) / 评论(0) 分类 2006年VOA标准英语(十月)

DEVELOPMENT REPORT - Shining a Light on Water to Prevent Infections By Jill Moss / Broadcast: Sun, 11 Nov 2007 16:00:00 UTC This is the VOA Special English Development Report. Viruses, bacteria and other organisms in dirty water sicken hundreds of m

发表于:2019-01-11 / 阅读(313) / 评论(0) 分类 VOA慢速英语2007年(十一)月

AS IT IS 2016-08-04 Ugandan Company Demonstrates Solar-Powered Bus 乌干达演示太阳能汽车 A bus powered by the suns energy has made its public debut. Kiira Motors Corporation demonstrated the new electric bus recently at a sports center in th

发表于:2019-01-12 / 阅读(334) / 评论(0) 分类 2016年VOA慢速英语(八)月

The drive to develop a battery to power automobiles, without using petroleum, is also behind the effort to develop an electric powered airplane. New designs for electric aircraft were recently unveiled at the Experimental Aircraft Association's (EAA)

发表于:2019-01-13 / 阅读(288) / 评论(0) 分类 VOA标准英语2010年(八)月

Company Takes Biodiesel From Field to Fryer to Fuel In the worldwide search for alternative energy sources, vegetable oil is becoming an increasingly popular substitute for crude oil. Diesel-engine fuel can be made easily from soybean, canola or othe

发表于:2019-01-14 / 阅读(259) / 评论(0) 分类 VOA标准英语2011年(八月)

India has launched its first indigenously built nuclear-powered submarine capable of firing ballistic missiles. The submarine, once in service, will give the country the capability to fire nuclear weapons from sea besides land and air. The Indian na

发表于:2019-01-14 / 阅读(311) / 评论(0) 分类 VOA标准英语2009年(七月)

With rising fuel prices, more attention is turning to biofuels. But (the) use of food crops for biofuel raises the concern of food shortages. But one non-food biofuel source is gaining attention. Just inland from the southern Mozambique beach resort

发表于:2019-01-22 / 阅读(238) / 评论(0) 分类 自然百科2008年

AGRICULTURE REPORT - High-Priced Oil Raises Appeal of BiofuelsBy Mario Ritter Broadcast: Tuesday, August 08, 2006 This is the VOA Special English Agriculture Report. An ethanol plant As oil prices cli

发表于:2019-01-30 / 阅读(251) / 评论(0) 分类 2006年慢速英语(八)月

This is the VOA Special English Development Report. Harvest in Benin A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. The study in Benin found that solar-powered pumps are

发表于:2019-01-31 / 阅读(289) / 评论(0) 分类 2010年慢速英语(一)月

Did you know that in general we have on the average, i guess, about 26 eletronic gadgets in our house and they are constantly all pluging them and charging them and very little that power actually goes to chargers. Some of it is just regularly runnin

发表于:2019-02-03 / 阅读(304) / 评论(0) 分类 英语杂谈

By Paige Kollock Washington, DC 12 May 2006 watch Sustainability Expo report More than 350 students from 21 colleges and universities were on the National Mall in Washington D.C. this week to compete

发表于:2019-02-05 / 阅读(318) / 评论(0) 分类 2006年VOA标准英语(五月)

谷歌收购无人机公司 In its latest purchase of high-tech companies, Google has acquired a manufacturer of solar-powered drones that can stay in the air almost indefinitely, relaying broadband Internet connection to remote areas. It is seen as

发表于:2019-02-06 / 阅读(251) / 评论(0) 分类 英语新闻

At the 1900 World's Fair in Paris, Rudolf Diesel exhibited an engine that could run on oil from vegetables and plants. But Diesel's design was eclipsed by automobile engines that ran on petroleum-based fuel. Today, though, with concerns about the env

发表于:2019-02-14 / 阅读(237) / 评论(0) 分类 VOA双语新闻 2008年5月

On August 6th a flimsy-looking pilotless aircraft, the Zephyr S, came slowly in to land at an undisclosed location in Arizona, 8月6日,一架薄得像纸一般的无人驾驶飞机Zephyr S在美国亚利桑那州的一个未知地点缓慢着陆,

发表于:2019-02-16 / 阅读(254) / 评论(0) 分类 经济学人科技系列

People flying into Indias southern city of Cochin may see numerous solar panels around Cochin International Airport. But they may not know that the airport was the first in the world to be fully powered by solar energy. A sea of shiny solar panels st

发表于:2019-02-18 / 阅读(281) / 评论(0) 分类 2019年VOA慢速英语(二)月
学英语单词
adapter automatic equalizer
assimilateness
be amused by
bed-cage
Benalup de Sidonia
ber (abbreviation)
bicamerally
biovular twin
boiled over
brayson
Breňa Baja
Camyazi
carnmores
cation or base exchange capacity
character of abelian group
church-going
cloud formation
combatively
comparative influence
deep tooth gear
defence navigation satellite system
Dendrobium lohohense
electrophoreses
emulsion type cylinder lubricant
Europabus
flowering cherry
focussing lens
fuzzytech
genericity
gold-ring
grid-type ion source
harpophylla
IACAC
ICL
icterus neonatorum
import bill
incumbrance
integral curve
kondracke
Korchnoi
Kutu-Songo
lacerant
laying cable
low moor bog
main nerve
medium-breaking emulsion
memorandums
mephitics
missile roll control
mobile engine test stand (mets)
Morin transition
multiple column
musculus ventralis
Nabnasset
native gold
nitro-aci-nitro tautomerism
nonconcomitant
nontransformable
Nucleus habenularis medialis
Nunwick
operating characteristic curves
pacambocythere scorta
pack riding
pelvic limb
phthalic nitrile
pinched composition
plant electrical output
pleurotomariids
preseptum
product law
propiverine
Q spoiling
re-genesis
rift-block valley
rist
samsons post
serum (pl. sera)
settling filtration
Simple Mail Transport Protocol
sine beat
solid-state detector
solubilities
spintronics
St.
stamineous
supraorbital bands
taxels
the Little Bear
tin babbit alloy
to guard against
top managers
torajaland
twenty-first-century
underprices
user parameters (in successive fields)
wealthily
Wijngaardekondre
World badminton championships
wrist wrestling
wristless
yakshi (n. india)
yellow books