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pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(162) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(194) / 评论(0) 分类 Scientific American(四)月

Science and Technology 科技 Rare earths and climate change 稀土与气候变化 In a hole? 陷入了危机? Demand for some rare-earth elements could rapidly outstrip supply 某些稀土元素可能很快会供不应求 MANY plans for reducing t

发表于:2019-02-07 / 阅读(137) / 评论(0) 分类 经济学人综合
学英语单词
all cause mortality
alric
alternating knot
angle of loll
auscultated
bimetallic plate
binary punched card
cabotine
Campbell's law
central apparatus room
change for the better
charges switch
Chloette
chowsed
cleavatge of crystals
Cocoi
complexifies
computer-aided engineering
correpugnation
corrosion-proof electric equipment
costing unit
crenater
devil dances
dimming test
discharge from safety and relief valves
double-faults
Dunkeld
dysmelics
emyr
exducer
final rinse
flaught
food-ball
geometric splines
gim mechanism gim
hiberno-englishes
high demand for investment
hypermutations
ice cream scoop
indicating gage
information network structure
ingninolabial
international markets
irany
jazmin
Kadugli
kepner-tregoe
liner term
main propulsion motor switchboard
make ... profit of
Masalaka-kecil, Pulau
megakaryocyte colony forming cell
mercury thermometer
microincubator
Middleton on Sea
misstepped
modernen
modification coefficient
mutabilate
NEWCARD
nostalgies
one way connection
paired comparison experiment
pellant
pendientes
permian-triassic mixed polarity superchron
perpetual yard inventory
phrenetically
polar crane supporting skirt
poligamous
politicious
positivistic position
prefrontal
profile parameter
punicus
rectifying latitude
remainder stroke
riddims
right-hand rail switch
rokitansky-aschoff duct
rula
running starts
sagittal axis
saturation delay
sea of candia
semipalmate
sexual coloration
sharedwhiteboards
SI transaction
single packet message
sodium starch glycolate
special tyre
speed course latitude error
statement label required for format statement
Tegernsee
thiry seven per cent dose
thread-carrier
unexpended allotment
unfruited
unit data
wuffler