低氢型涂料电弧焊条

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发表于:2018-12-01 / 阅读(95) / 评论(0) 分类 用Mp3背六级单词

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(89) / 评论(0) 分类 Scientific American(十二)月

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens,found in the mud at Oyster Bay,Virginia,has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(63) / 评论(0) 分类 有声杂志阅读

Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w

发表于:2019-01-02 / 阅读(265) / 评论(0) 分类 60秒科学

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(72) / 评论(0) 分类 Scientific American(八)月

China has launched two satellites into space on a Long March carrier rocket from the Xichang Satellite Launch Center in Sichuan Province. The satellites are part of the country's growing BeiDou Navigation Satellite System. The launch of the Long Marc

发表于:2019-01-19 / 阅读(92) / 评论(0) 分类 2018CRI中国国际广播电台
学英语单词
absorptive support
ANDING
antenna focal length
antitetanic serum ATS
artificial afforestation
average wind
axially symmetric magnetic field
bankruptly
be hyped up
be no oil painting
benzyl isovalerate
Betws-y-Coed
brassidic acid
cable trough(cable channel)
caltran
chromium mononitride
commitment concurrency and recovery (ccr)
constant humidity radto
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convection surface
copper coated
Cross River
cryogenic pumping
cryptopone tavianae
cycle ratio
dimaleate
dioxopurine
direct democracy
discrepant item
disproove
dough mixing time
dry herd
edudesmin
embryoctony
error function test
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evangelium
explosion-proof valve
family ephippidaes
fenestela
flock adhesive
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friction disk
fulbright scholar program
gas turbine power unit
generating cutting tools
heart shape thimble
immutable
isolation process
knifegrinder
liquid-filled membrance pressure gage
lithium-lead alloy
long duty cycle
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marine culture
marker oscillator
max-min
medium range air-to-air missile (mraam)
mesh parameter
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MMCC
moller cross-section
neck-down riser
nist-traceable
nonnucleus
oblique diameter
oke-opin
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pangram
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plexus pampiniformis
polystilbene
potassium chloride
promethlum
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rumor has it that
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sep-
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