[化] 四氧化铯; 过四氧化二铯

[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon

发表于:2018-12-26 / 阅读(71) / 评论(0) 分类 美国英语听力80篇

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(86) / 评论(0) 分类 Scientific American(八)月
学英语单词
591
abdominal plate
aerodynamics noise
age map
akuammiline
Andrachne chinensis
artificial intelletual
autopiloting
average weight
baviere
bayesian approach
chlorotetracycline
choice of law clause
chorda tendinea
Commercial Code of Japan
complainin'
contaminants
continuous principal series
corroboree frog
cut one's own fodder
DC reverse power relay
dealbated
domestic production
droopings
DT3
earache
EDP
excess(thermodynamic) function
expenditure disburse
experienced teacher
extol as
failure stress
fictiler
first quality ware
flatss
Gunibskiy Rayon
hamdoon
hand-gear
hyperchess
image-forming
increment curve
interleukin-2
island type cooking range
joggled joint
juliis
kept my word
Koepanger
kurrajong
lachnum lanyuense
larcener
Larroude
leucoscopy
lighting dynamo
lithemia
lithomancer
luteocobaltic chloride
lysenkoes
Macquarie Marshes
magnetic filter
men syndrome(multiple endocrine neoplasia syn-drome)
menkes
methyl toluidine
minatom
multichromatic spectrophotometry
Nagibovo
nedoes
normal retirement age
OCD (optically coupled device)
Ornicetil
orohydrography
outdoor type bushing
peacekeeper
Pilea boniana
poless
powder hoy
press-casting machine
pressure sensation adaptation
psoriasis inversa
pyroarsenite
quora
repair of cervix
reset mask routine
retaliatory raid
rio de la platas
rostow-taaffe model
segment field
shanov
sleepy cream
standard compilation
standard-pack tomatoes
synapte
tax-evasion
the old ball and chain
the very idea!
thermal aberration
traditionaries
tricking
true as steel
ultra-basic rocks
ultrasonics for viscosity measurement
univeral mathematics
veramarine