时间:2019-01-08 作者:英语课 分类:Scientific American(三)月


英语课

 This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. 


 
Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful 1 but adds CO2 to the atmosphere. Recycling helps, but even that material has to be repulped and paper-ized before you can use it to print out that recipe you’ll never make. But what if you could wipe the page clean and use it again?
 
Light amplification 2 by stimulated 3 emission 4 of radiation to the rescue. A new study shows that laser light can erase 5 the toner from a piece of printed paper. The approach appears in the Proceedings 6 of the Royal Society A. 
 
Taking a page from the art-restoration handbook, scientists sampled a variety of light sources to see if any could be used to strip the ink from laser-printed documents without damaging or discoloring the paper. UV and infrared 7 were too harsh. But a bright green laser applied 8 in 4 nanosecond pulses vaporizes the print, leaving paper that looks as good as new.
 
Such unprinters will probably run about 30,000 bucks 9, so they probably won’t catch on for home use. But people in the recycling world might find that the green laser fits the bill—for making paper that’s really green.
 
Thanks for the minute, for Scientific American 60 Second Science, I am Karen Hopkin~

adj.(造成)浪费的,挥霍的
  • It is a shame to be so wasteful.这样浪费太可惜了。
  • Duties have been reassigned to avoid wasteful duplication of work.为避免重复劳动浪费资源,任务已经重新分派。
n.扩大,发挥
  • The voice of despair may be weak and need amplification.绝望的呼声可能很微弱,需要扩大。
  • Some of them require further amplification.其中有些内容需进一步详细阐明。
a.刺激的
  • The exhibition has stimulated interest in her work. 展览增进了人们对她作品的兴趣。
  • The award has stimulated her into working still harder. 奖金促使她更加努力地工作。
n.发出物,散发物;发出,散发
  • Rigorous measures will be taken to reduce the total pollutant emission.采取严格有力措施,降低污染物排放总量。
  • Finally,the way to effectively control particulate emission is pointed out.最后,指出有效降低颗粒排放的方向。
v.擦掉;消除某事物的痕迹
  • He tried to erase the idea from his mind.他试图从头脑中抹掉这个想法。
  • Please erase my name from the list.请把我的名字从名单上擦去。
n.进程,过程,议程;诉讼(程序);公报
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
adj./n.红外线(的)
  • Infrared is widely used in industry and medical science.红外线广泛应用于工业和医学科学。
  • Infrared radiation has wavelengths longer than those of visible light.红外辐射的波长比可见光的波长长。
adj.应用的;v.应用,适用
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
n.雄鹿( buck的名词复数 );钱;(英国十九世纪初的)花花公子;(用于某些表达方式)责任v.(马等)猛然弓背跃起( buck的第三人称单数 );抵制;猛然震荡;马等尥起后蹄跳跃
  • They cost ten bucks. 这些值十元钱。
  • They are hunting for bucks. 他们正在猎雄兔。 来自《简明英汉词典》
标签: sss 托福素材
学英语单词
6-aminochrysene
a Dutch auction
accept a draft
achromias
aerodynamically clean
amarants
Ancathia igniaria
anterior talar articular surface
anti-abortion movement
backwater height in front of bridge
be open to dispute
Belper
bituminous coals
bounded sum
BP (booster pump)
capacity of vascular bed
Castleplunket
Cholecystopancreatostomy
cognitive dimension
colpohysteropexy
congeneric
containership
crisp candy
cylindrical wave equation
deadbeat algorithm
defeathering
deviation loss
displenishing
dium
EGTA
elephantsnout fish
equilibrium xenon poisoning
field picture
filariacida
free roller conveyor
fumier
gauncelye
ghanas
glass-fiber reinforced resin
Grimsel Pass
groundwood fiber
Hephaistus
hydrocarbon-end-out
Ikise
jig
layout
leucotriene a4
lose synchronism
Maisons-Laffitte
Mebenoside
metalloscopy
migration effect
modular satellite
much-improveds
naep
nonelectrical
of fine proportions
omniarchs
ondaatje
ops
over-seen
pasteurizing column
pernors
phlegmatic mass in mouth and tongue
photoetching machine
phytotoxin
pity parties
plagiobryum giraldii(c.mull.)par.
prehypophyseal
protectionless
puffiness of face
Purley
quick hardening cement
rasa
receive us
reciprocating main movement
referents
reflecting horizon
retrospective voting
Rocky mountain pinon
runestones
sector mutation
simple idea
smpy
SPEP
stoned out of one's mind
surreally
tanto knife
tethered unit
texture of coal
thyroid-parathyroidectomized
Timimia
Triftazin
turnover labour
unit record eqiupment
United States Open Tennis Championships
unsnobbishness
variance optimum value
vpf (vender print file)
Xiuneisi official ware
yglesias
zinc stearate