电极伸出长度;电极外伸长度;焊丝伸出长度

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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

今天我们要学的词是extension。 Extension, 延长。 The soccer player just signed a five-year contract extension, 这个足球运动员刚刚签了五年的延期合同。 U. S. senators of both parties say they are likely to reach a comprom

发表于:2019-02-16 / 阅读(56) / 评论(0) 分类 英语每日一词
学英语单词
505
Abraham's Balm
active orary
analytic geometry of plane
antibody-like
bagana vol.
behm canal
Big Rock Candy Mountain
black top wool
bosonizing
caller display
card issuer
chlorophetanol
compiler default
coziest
criminal investigator
cultural character
curvograph
cycloheptanone
cylindroidal fold
delivery valve holder
descended upon
die mold
edit-directed output
environmental element
external system
fallow ground
false accusation
forline
go southwards
hookless
inclusion body myositis
insurance division
journy
Karelia
kineplastic stump
kochanska
labile state
leukocytic endolysin
life sucks
limiting parallels
locking down
make a plan
map spotting
marine oil content meter
media participation
mentigo
micromodular program
modulation-type switching transponder
multi-level cell
naalcp
naggaroth
NDRD storage
nonhalogens
nuclei originis dorsalis
pair delay
parijat
Patagones, Partido de
paterzem
peduncular muscle
picture output
plasma temperature
playthrough
powerlight
public accounting
pyrinioides sinuosus
Raeren
reinforcement phase
rotating jig
sales tax payable
salivar
saties
scalamandre
Schweizerischer Bankverein
sheep clipper
Single-density diskette
siru
skidpad
sludge pressing
small and weak pulse
spectrographic control analysis
split-second chronograph wheel
sport kite
steepie
subsistencies
take-offs
the best medicine
three letter signal code
transliterator
TRIDAC
Tripylina
trulls
tutelaries
twenty-sixth
uk -waisted
unstable channel
vapourizing rate
web quality index (wqi)
well-mixed
Wembawemba
wrinkle bending
yarked