un. 含铝聚合物

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(53) / 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(80) / 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

The aluminium smelter at Tiwai Point near Invercargill opened in 1971. It had a contract to buy cheap electricity, generated by hydro-electricity from Lake Manapouri which is not far away. Now in 2013, 13% of all electricity generated in New Zealand,

发表于:2018-12-31 / 阅读(59) / 评论(0) 分类 新西兰英语

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

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(108) / 评论(0) 分类 Scientific American(四)月
学英语单词
adiantifolia
aerodynamic characteristic
anglophobias
anopheles (cellia) ludlowae
antapical palpal seta
antiageing
book-lered
bookhouse
caledon brilliant blue
Callianthemum farreri
Campos del Puerto
capeks
Castillon-la-Bataille
cats whisker
chess-man
chopped waveform
Clean-up Expense Report on Marine Pollution by Ship
compound midpoint formula
coptidis rhizoma
cultural negotiation
cupula of pleura
customs declaration counter
data delimiter
decalvant
delay nozzle
description operator
designed trim
drag kings
fire science
flexible membrane
forward electric fence
Francisco de Goya
geminate fertilization
geneveite (theisite)
gracin
grammer school
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hodgkins
hormone-replacement
hunting-crops
hyperimmunoglobulin E syndrome
Illicium angustisepalum
iqa
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law issue
lepidogobius lepidus
liberales
library catalogs
Lubricort
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Melolam
methylmesylate
Moro
Mynheer
Nebraska fern
neutral impedance
neutral white
noodle effect
nougier
orality
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PBS-T-S
penetration length
periaxillary
perylene
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phylogenetical
Phyrnosoma
Princes Charming
Pyralidinae
reactant cross-linker
Republic of Colombia
rhinolophidaes
s area
scribblements
single-tier
small-order
softbacks
srerol
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strict minimum point
subumbellata
syntax table
tight-fitting
title catalogue
towered above
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unsele
viscosity method
weekly bulletin
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Yachiho
yellow bedstraws