异元聚合物

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(52) / 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(79) / 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(62) / 评论(0) 分类 Scientific American(一)月

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(79) / 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(64) / 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(107) / 评论(0) 分类 Scientific American(四)月
学英语单词
absorbing pad
al balaim lagoon
Anthocoridae
apex of nose
arclight projector
arctocarboniferous flora
arms locker
as quiet as a mouse
Bajestān
boss rings
cartograms
centrosymmetrical crystal
Charwoman.
check in and check out
Code of procedure
concatemerisation
control gravimentric base
cooling wall
counter-thrusts
crank opening
crith (krith)
current mode complementary transistor
Cyath. vin.
disinherited
draw-off pump
emission spectral line
emptying of piping
enciphered
ephemeral pneumonia
ethnicizing
fall rope
fiery temper
fifth postulate
filligree
first tap
flueway
foreign currencies earned through trade
full-louvered door
genetic graph
genus Chamaeleo
genus platystemons
georgi-glashow model
half-written
hemipakinsonism
horopter-curve
houtous
Ikla
intelligent transportation systems
Internal measure
isobutylallyl barbituric acid
juggled
land mark navigation
legate a latere
linear lightning
lymphangitic
make no mistake
margin stop mechanism
meanish
message member
messagier
mixed oral gland
modern filter theory
morphinic
moyodore
mussy
nonlinear electromagnetic medium
office of the public prosecutor
OPDOC
overstrenous
pachycentra
Parry, William Edward
PE (phase encoding)
phase flow
placenta septa
podocinum pacificum
polytans
public accommodation
rapelike
rdr
rediagnose
remedial gymnastics
request homing
retrocessionaire
reversed-drag
ring-blocking test
roll-over anticlinal trap
scopulariopsis carbonaria
seedsnipes
semicarbazide-3-thio
Shāh Husain
signal level test film
state trial
storyboarders
test-pattern generat
the little corporal
Tractus spinotectalis
uneven lustre
valedictory speaker
variable-mutual-inductance transducer
wedge-riser flange
yang-yin
Yokohama crepe