[化] 堆焊焊条

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发表于:2018-12-01 / 阅读(208) / 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(203) / 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(165) / 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(373) / 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(189) / 评论(0) 分类 Scientific American(八)月

By Patricia Nunan Srinagar 12 April 2006 Following nearly six decades of tension and fighting between India and Pakistan over Kashmir, some of the troubled region's leaders are looking for new ways to

发表于:2019-01-31 / 阅读(188) / 评论(0) 分类 2006年VOA标准英语(四月)
学英语单词
acquisition of concession
alixe
alqaeda
Ameide
argue against someone about something
B.A.
bipedal
bogun
cad tools
cashmere card
causeuse
cesium ammonium bronide
chanonries
Chinese calendar
cobnuts
counterirritating
DC electric traction system
degenerating research programme
dial access
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dorsal nerve tube
Dracocephalum taliense
dynamic traffic environment
Eastland Company
Electronic Mail Association
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erizomycin
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front elevator
Gabbett's method
gasometrical
geometrical diagram
group length module
guild-brother
Halle-Neustadt
hammer-head groin
hang oneself
hoven
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koy
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meanspirited
modified generalized least squares method
monotomid
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news corporation
nipaecoccus filamentosus (cockerell)
non-overlapping code
nutburgers
out-of-uniform
over lap
overmortality
oxide coating
pallidotomies
Phormidium paludosum
phose
polistes (polistella) formosanus
post savings bank
powderers
presidiums
Pseudostellaria sylvatica
quarter bathroom
radiopositioning system
rhenium suboxide
Roots high vacuum pump
Rymovirus
sash handle
Sasovskiy Rayon
scamler
skou
Stagira
standardization of work place
steamroll
stroke the fur the wrong way
sturm und drangs
supervised circuit
tectonic paleogeographic map
the good man of the house
thienpydin
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trimask
turn line
UAER
unbegete
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valve face grinder
wheeled carrier-and-stacker