雾化喷嘴套管(喷嘴上的螺母)

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
accumulative penalty
annato
anovulatory drug
balance of births and deaths
be even hands with
be nicely stacked up
biscuitlike
blimming
campear
charging effect
chloramphenicol syrup
color theory
copernicia ceriferas
cortical arousal
cosmotrons
Daemonorops draco
decay product
depressurised
Dewi
diamino-acridine
die like a dog
endophora
euryhyaline
examination phase of audit
fig-wart
film optical scanning device for input to computor (fosdic)
finishing nail
Finlandizing
functional operating system
furhman
Galogalo-besar, Pulau
garn
governour
group closure of a subset
high resolution TV camera
highcockalorum
hohenberg
holding key
honey-dews
Hostotipaquillo
in the small of back
invariants of projection
iodine monochloride
job welding shop
kodis
lagrange's equation of motion
libcrypts
Limitation of Shipowners Liability
Lindemann's cannula
mackerel pike
magnet siren
magnetic deflection sensitivity
Magro, R.
maladjustment
masticators
membranatic
mesonota
michigan-dearborn
miscellaneous goods
mothlike
museological
nasociliary
nighthawking
nucleated cell
oudins
ovariodysneuria
pangeosyncline hypothesis
psammophila
pteroptrix albocincta
pulley casting
puncture of frontal angle
Pālam Internat.Airport
race-mixing
rebeldom
ren-ren
revolution per minute
rhombifolia
screen grab
single acting cylinder
singularity of universe
slaving voltage
small insect
solid state polymerization
spreader groove
steeple headdress
Strategic Arms Reduction Talks
sulphur olive
supremacy
tarsorrhaphy
teffs
Teichmann's test
the hustle and bustle
thermochemical
tropylium bromide
TTG
Uinta County
Venezuela
water blocking
welcome money
winner-takes-more network
zolla
Zuénoula, Dép.de