多硫聚合物

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(73) / 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(60) / 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(78) / 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(62) / 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(105) / 评论(0) 分类 Scientific American(四)月
学英语单词
agathidium (agathidium) subalpinum
aleppo (alep)
amorphophalluss
amosites
animal worship
atomizing nut
Bacillus coli nonfervoris
back-pages
beryllium detector
bloccuz
breastknot
brow presentation
bryum capillare
camouflage
carboloy composition resistor
carcara
CASB
chalcid flies
Colmeal
conformal tensor
corporate phone directory
cowinner
critical relative bearing
dominant discharge
dry vacuum air pump
e-tag
earl of surrey
endeign
engine hand
F. A. D.
fits the bill
FLTAC
flushing cycle
forfeit of civil right
functional biology
generalized stress
genus ptilocrinuss
genus seriphidiums
geotropotaxis
give someone a break
glycerolyte
grid-pulse triode oscillator
has advantage of
heat-insulated container
HECP
hisel
holds out on
irregular calyx
is nothing short of
J E S
John Copley
Kveim antigen
Lawson Software
leopardbanes
load carrying properties
lose your rag
love game
malathionase
manyaras
micromelanophores
misshapennesses
n-hexyl ether
noise from clutter
nonlitigation
nonmetals
normal indication wire
not but what
Novoaleksandrovskiy Rayon
OD (outside dimension)
Parking Stand
partial hypertrophy
perfact fungi
porcupine provision
preventive orthodontics
projectile body
Protolepidodend-raceae
quantifiables
rattle someone's cage
read write station
relationing
Scenicruiser
sepultary
ship out
sierrans
Solanum commersonii
squeezing and pressing method
Sudetic
surface tack
swear sb to secrecy
the lion's mouth
three-stage gas sealing system
tracheal cyst
transition of the second order
tuberculosis of lumbar spine
tussic
vadium vivium
ventral culumn (or ventral gray column)
viding
weevil's delight
weighing institution
whatses
woollyish