[化] 杂环高分子

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(124) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(152) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(134) / 评论(0) 分类 Scientific American(一)月

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(138) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(174) / 评论(0) 分类 Scientific American(九)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(195) / 评论(0) 分类 Scientific American(四)月

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

发表于:2019-01-12 / 阅读(107) / 评论(0) 分类 2016年VOA慢速英语(九)月

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

发表于:2019-01-14 / 阅读(202) / 评论(0) 分类 VOA标准英语2016年(二月)

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(160) / 评论(0) 分类 TED演讲教育篇
学英语单词
a bed of nails
acetylsalicylaldehyde
ardisinol
aspish
atsuki
avoider
bands payable
be good enough to do
Benghazi
Blanquism
bogie pin
bowdon
break up voyage
built-in lamp
carnaria
child-bearing group
chlorine logging
CMI (computer-managed instruction)
coating protection
combined electrical apparatus
communication gear
critical withstand current
data acquisition recording system
depalatalizations
differences of co-ordinates
diving instrument
dna denaturation
dry run rehearsal
dual-drive tandem
due course(of law)
duplex crank press
edi forwarding
elasticotaxis
elnett
exoniensis
family viewing
feel one's best
filtered-particle testing
fined tube exchanger
Finikoff's method
flue bridge
fragrances
French rose
fuel injection period
generalized deficiency relation
generously
Glenbuck
goniohemorrhage
groaned
Hanceola flexuosa
histocompatibilty
housing washer back face chamfer
incipiences
Irtish River
junctional rhythm
kipchoge
Lokot'
Metachlorite
multi wash collector
multiple leukocytic sarcomas
muolo
myocardial infarct
non-anonymous
non-crossing rule
obrium formosanum
olivine nephelinite
orangiest
ordinary field
ornamented type
Pancratium biflorum
persistently
Physalis pubescens L.
pilling test
product analysis pricing
prohibitive inhibition
proportional quantities
prosite
pushing rod jack
reciprocal model
residual magnetism measurement
Robert Peel
servicing system
shirtless
single boom system
Speightstown
sphaerulina rhodeae p.henn. et. shirai
spiralization(darlington 1932)
storm sewerage
striff
sucks
surjunctive group
the bowwow style
the native
tronks
twisted
ulklie
unilateral winding
unsummerlike
Vybak
water infilitration and redistribution
wontlike
yak-cattle hybrid