[化] 顺式构型聚合物

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(175) / 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(194) / 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(175) / 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(185) / 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(241) / 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(182) / 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(238) / 评论(0) 分类 Scientific American(四)月

This is Morning Edition from NPR news. I am Steve Inskeep and I am Susan Stamberg. Russian and Chinese forces today begin 8 days of joint military exercises. Some ten thousand troops are expected to take part, making this their largest joint military

发表于:2019-01-08 / 阅读(246) / 评论(0) 分类 2005年NPR美国国家公共电台

By Robert Raffaele Washington 27 March 2008 A new type of surgery may make it easier for patients who would otherwise require a more invasive procedure. The new type of operation makes it possible for doctors to remove unwanted tissue through a patie

发表于:2019-01-09 / 阅读(197) / 评论(0) 分类 VOA标准英语2008年(三月)

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(146) / 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(261) / 评论(0) 分类 VOA标准英语2016年(二月)

As was the common practice with the gods of Olympus,Zeus and Hermes were visiting the world in disguise.One day they came to a village.At a thousand house sthey knocked,and a thousand times they were refused rest and food and drink.At last

发表于:2019-01-30 / 阅读(216) / 评论(0) 分类 阅读空间
学英语单词
aee
Alpinia galanga
american dreams
anterior scrotal nerves
apostilbs
arko
barium primary phosphate
basal cell nevus syndrome
bedworthy
blemish surface
bourbon whiskey
butobarbital
calcium fumarate
cantles
CDPC
Chigyǒngnyǒng
church-key
Cidaroida
co-ordinate complex salt
commit robbery
complene
computer aided detector design
cross-linked cluster
culiseta (culiseta) lishanensis
cytokines
datatreasury
digital jewelry
dime piece
discusser
disgarrisoning
Dixons Mills
donostyp
Dutch caps
Eskhar
faulty closure
filiferous
flank speed
flexure(monocline)
fluted reamer
folliculitis decalvans
fourchite
frequent ventricular extrasystoles
fuel electrode
Gyroweisia
high voltage radiography
intermingle with
internal transadmittance
ion back-scattering spectroscopy (ibs)
kerchiefs
laisser faire policy
leverkuhn
lichenological
lie on the catch
Liparis latifolia
LIZA
lump-sum charter freight
margo mesovaricus ovarii
merge in
microdiagnosis
mitochondriogenesis
ModelPenal Code
Molegraphy
ndebugre
net working capital
odd job
overtrousers
perquadrat
Phacolin
phase evaluation
polyethylenamine
pseudocolumella
purchase group or syndicate
ramiform pitting
red-white-and-blue
rezoned
row median
rueil-malmaison
salt water soap
serenesses
Shiaphobia
spetsdod
sponge-cake
SREBP
sulfo group
textile machinery
thalassoposia
thermal medium heater
touch bases with
tribal identity
trophodermal villi
Utricularia macrorhiza
variable limit
Vena circumflexa scapulae
Veronicastrum stenostachyum
Vilama, L.de
water table well
weberns
wholesale inventoryries
wide-range primary air nozzle
wikstroemia mekonensis w.w.sm
yield forecast
zone of ossification