低倍显微镜

[00:00.00]Lesson 4 Atom [00:01.95]原子 [00:03.89]The really strange thing about atoms is that most of us will never see one. [00:08.87]原子最奇特之处在于绝大多数人永远也无法看到它。 [00:13.84]Atoms are so small that it's impo

发表于:2018-12-08 / 阅读(141) / 评论(0) 分类 赖世雄学英语第四册

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(158) / 评论(0) 分类 VOA标准英语2015年(七月)

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(243) / 评论(0) 分类 VOA标准英语2010年(一月)

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-08 / 阅读(178) / 评论(0) 分类 Scientific American(六)月

All Time Low The Wanted Praying won't do it Hating won't do it Drinking won't do it Fighting won't knock you out Of my head Hiding won't hide it Smiling won't hide it Like I ain't tried it Everyone's tried it now And failed somehow So when you gonna

发表于:2019-01-10 / 阅读(169) / 评论(0) 分类 好听的英文歌曲

The Diamond Lens by Fitz-James O'Brien, Part Two 钻石镜头 by 菲茨詹姆斯奥布莱恩 Ⅱ Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and final part of the story. Here is Maurice Jo

发表于:2019-01-12 / 阅读(465) / 评论(0) 分类 2015年VOA慢速英语(七)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(195) / 评论(0) 分类 2016年VOA慢速英语(八)月

'The Diamond Lens' by Fitz-James O'Brien, Part Two 钻石透镜 II by 菲茨詹姆斯奥布赖恩 Our story is called The Diamond Lens. It was written by Fitz-James O'Brien. Today we will hear the second and final part of the story. Here is Maurice J

发表于:2019-01-12 / 阅读(314) / 评论(0) 分类 2016年VOA慢速英语(九)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(181) / 评论(0) 分类 VOA标准英语2010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(180) / 评论(0) 分类 VOA标准英语2009年(七月)

iPhone Becomes Low Cost Microscope The Apple iPhone can be used for lot of things making calls, playing games and sending pictures, video and text. Scientists say it also can be converted into a low-cost microscope to detect worm-related infections i

发表于:2019-01-14 / 阅读(169) / 评论(0) 分类 VOA标准英语2013年(三月)

AMERICAN STORIES - The Diamond Lens, Part OneBy O'Brien, Fitz-James Broadcast: Saturday, April 01, 2006 Announcer: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called

发表于:2019-01-30 / 阅读(174) / 评论(0) 分类 2006年慢速英语(四)月

AMERICAN STORIES - The Diamond Lens, Part TwoBy Fitz-James O'Brien Broadcast: Saturday, April 08, 2006 Announcer: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story is called The Di

发表于:2019-01-30 / 阅读(323) / 评论(0) 分类 2006年慢速英语(四)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(199) / 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(174) / 评论(0) 分类 英语杂谈

WASHINGTON, May 1 (Xinhua) -- Scientists from IBM on Wednesday unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms. Named A Boy and His Atom, the movie used thousands of precisely placed atoms to create n

发表于:2019-02-04 / 阅读(137) / 评论(0) 分类 英语新闻

How Low [Hook] How low can you go? [8x] [Ludacris] Luda! She could go lower than i ever really thought she could, Face down, ass up! The top of your booty jiggling out your jeans, Baby pull your pants up, I like it when i see you do it, Better then i

发表于:2019-02-18 / 阅读(208) / 评论(0) 分类 好听的英文歌曲

Low [Chorus:] Shawty had them Apple Bottom Jeans [Jeans] Boots with the fur [With the fur] The whole club was lookin at her She hit the flo [She hit the flo] Next thing you know Shawty got low low low low low low low low Them baggy sweat pants And th

发表于:2019-02-18 / 阅读(188) / 评论(0) 分类 好听的英文歌曲

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(179) / 评论(0) 分类 2019年VOA慢速英语(二)月

How could you say you know who I am? Do you ever wonder why I'm here? The thoughts play back in your head like a film that has been stick on repeat. Imagine that this picture of me is painted for you. A portrait is made to hold a moment and moments w

发表于:2019-02-26 / 阅读(160) / 评论(0) 分类 英文摇滚歌曲
学英语单词
accretion discs
accumulator addressing operation
alejandroes
ameletus formosus
arm-lengths
artificial lightening
aslosh
assumption
atomizes
autologous transplantation
ballistics
brake vans
churchplanter
colored-paper
conveying worm
cross-range
crucible shank
diaphenyl
differential transformer displacement transducer
discontinuous sterilization
elementarian
enholm
expected number of failure (enf)
feather star
first core
first tier
foil-polystyrene-laminate
freight destination
Fèternes
German chamomile oil
get down with
gravitational environment
Hammond organs
handjobs
heat loss due to exhaust gas
high-rate telemetry
Hydeltrone-TAB
hymeneal
Japanese maple
jumbo sausage items
Kerr cell electrode
khan
leucite ijolite
Ljósavatn
load steam loss
Loewy, Raymond Fernand
low-value-added
mahlons
margo anterior (pancreatis)
marriageable age
micron mill
Motto Botello
multilexemic
Naunheim
nerodias
nonserrated
not for profit organizations
nuclear network
O.M.
outdiffusion effect
pay phone
perfect fungi
periphyllus koelreuteriae (takahashi)
permit for withdrawing
pipistrels
platinian rhodium
professorish
pruta
pyrolyzed
pyrotechnic
quaternary ammonium base
quia timet
relative luminance curve
relaxtion
repairing account
rough wave effect
saughy
single capstan
slide-action
slow ahead both engines
sniffingly
splenic lymph nodes
sprinkler rig
stagnation of qi and blood stasis
starting signal
strawberry pie
supply range of complete set
tachyglossus setosus
tertiary constriction
toluphenazine
total magnetic susceptibility
toxic epidermal necrolysis
tuberculosis enterogenes
ultrasonic cleaning equipment
ungarbled egg
uphang
use of the globes
Velikino
weakened field
Weil-Felix test
wheel conveyor
wire-controlled antitank rocket