塑聚合物

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(89) / 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(116) / 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(103) / 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(102) / 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(119) / 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(106) / 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(153) / 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(70) / 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(151) / 评论(0) 分类 VOA标准英语2016年(二月)
学英语单词
adhesion spot
adult primary tuberculous infection
akzo
allowance for time
aluminized
as cheap as dirt
attractive (-type) maglev
automatic target handoff system
be an ass for one's pains
beslow
bio-sensitivity
bright rayon
Cappeln
cariogenesis
channel balance
cold array
combined unit kilometers
convex ridging body
curling stone
defensores
dermoskeletal
di-deoxyinosine
dihydroxyphenyl acetic acid
discharge service van
double-cutaway
editing environment
enlargement factor
eternidad
evirtuate
extensible markup language hypertext transfer protocol
external control loop
filter tank
fracture of humeral condyle
genus Stenochlaena
glue application machine
gradually applied laod
grave minor seventh
gunwale to
Iskǔr Dam
JANFUs
jelly petroleum
jolly
jordy
kanyi
keflexes
kogiids
lacemaker
longeatons
lounge chairs
major constituents of sea water
manner of discourse
meadow-steppe
medical tourism
Merazene
millicycles
moguls
mordantly
muscle strength test
mycetocole
nest cell
nibble
Nyctanthes arbor-tristis
optimum degree
outbound boom avoidance (oba)
paleocons
parliamentarism
pedestrian mall
poldavy
portable electrical tool
poset
pridefest
provide ... for
pured germanium crystal spectrometer
quasi-analytical method
reduced radiation
registration of reader
sand phloxes
sapor
sea colo(u)r index
session service
sheep ked
Sirāthū
sliced off
succinyl chloride
supercooled air
ta sh?n wu
tacsatcom
talk sth out
three-self
time structure contour
tractus fastigiobulbaris (cerebellobulbaris)
treader
trifluoracetic
trismic
tropic behavior
twisting netting
two-storage temperatures refrigerator
tylosins
Vlachokerasia
vortex mixers
workshops
xuanji