[经] 保税保险

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(54) / 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(81) / 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(63) / 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(65) / 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(109) / 评论(0) 分类 Scientific American(四)月
学英语单词
accumulation coefficient
ambisporangiate
an account rendered
anazotic
angle milling cutter
angle of travarse
aniseikon
autoeciously
automatic system trouble analysis
bacterial food-poisoning
be deemed as
be set against
belligeration
bitexts
breaker cover
C.M.T.C.
cholestadienols
claroline
coagulability
coldweld
counter-signing
counterlath
degree of cross linking
dental periostitis
diameter class
duct of botallo
earthdin
economic aim
elbowings
family fistulariidaes
flame resistant
floating mire
forced decision
frankings
give body to
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guardiola
guy insulator
hematocrits
hemitoxiferin
hyperlink
hypofractionated
impossible mission
incestuous share dealing
inequity aversion
infringe on
inter-branches
Isenbüttel
Keith's bundle
laccopetalum giganteums
Laoag
liquidating distribution
local coefficient of heat transfer
look as if
machine final terminal stopping device
machineabilities
mass renormalization
materials cost account
medulla of hair
molecular alignment
national socialism
neutrons fission
nitrations
off-price merchandise
ordered chain complex
organizer center
outline view
overseas money markets
pannel spalling test
papermakers
parapodal shield
PC emulator
POOH (planned overhaul outage hours)
regulation of wagon flow
Rescue-grass
resubmission
roll shop building
rope-yarn
sedimentation boundary
self-excitaion winding
Sertoman
similitudines
siphon gauge
spartoid
spiritual naturalism
strategic defensive forces
subclass Euryalida
swazzle
terebrating
the sea wolf
thin wrapper
thoracoepigastric veins
tube burst
turf fibre
unqualified confirmation of terms of transaction
verbal regulation
VGA cable
W. N. P.
wadden
water discharge cock
whipworm
Zhongshan District