熔渣保护型焊条

Jacky’s Funny Self-Portrait Hello, my name’s Jacky Earl and I’m a bank clerk but I’ve recently been made 1)redundant, I’ve got no pension, earn nothing and I thought I’d make my life reall

发表于:2018-11-28 / 阅读(141) / 评论(0) 分类 疯狂英语2004年

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发表于:2018-12-01 / 阅读(93) / 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(61) / 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
学英语单词
band-in-a-box
brake screw
bugle-bead
bureaucratic structure
caprylic anhydride
carbon fiber composite material
Clark's compound
communication and data subsystem
connecting series-paralicl
contour plot
creditableness
cultivatorhiller
dance-orchestra
data admissible structure
diagonal game
double declining method
dropdown list
dropped panel
Dushambe
efflower
energy beaming
engraved stone
entry way
error condition (in calculators)
expanding pulley (expansible pulley)
experimental reproducibility
eye animalcule
facsvantage
ferrey
fire -extinguishing agent
force due of viscosity
FORTRAN function
front side guard
g-d
gas compression tap
gas field exploitation
goddesslike
green ware
houttuyninum
Ingersoll
intratumoral
Ixora subsessilis
Jaghbūb, Sha'bīyah
journey-cake
juxta-position
kunstseide
lift the embargo
lob-worm
luggage carrousel
management aboard ship
manual speed adjustment
many-plume moth
maria's
Marsdenia pseudotinctoria
maximum allowable speed
meteorological visibility
micro-brewery
middles of the roader
Nechung oracle
off-the-bench
one price house
onlooking
packet switched digital data network
paratheses
paratrite
Pars mylopharyngea
physics lab
Pin R.
polpettine
pounding up machine
price adjusted value
primary distribution trunk line
productive life
proxies
purple tooth
reclears
resonator sensor
reverse strike
reverse-engineering
rubberwood
rubidium gallium alum
rufous
sawn gourds
Sefīd, Kūh-e
sesame family
signal gun
single cord
slow drive
strength of ebb interval
Takwa
tambja morosa
termwise differentiable
thruple
tianafac
Trisetum
USC Process
vinified
wave generator
wet electrical dust precipitator
wickson
X bosons