[医] 碳酸铯

[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(158) / 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(150) / 评论(0) 分类 Scientific American(八)月

日常生活中,意外伤害很难避免。如果我们不及时救治或者操作不当的话,很可能会对自身或者他人的身体造成伤害,所以,掌握一些急救常识非常必要。下面我们来看一段关于学习急救的对

发表于:2019-02-26 / 阅读(181) / 评论(0) 分类 英语口语
学英语单词
absorption wavementer
Acicularia
agricultural safety
asarhs
atomiques
automorphic form
be sunk in deep thoughts
bedel
bellocs
benefits
binder applicator
bisection method
cease from
chain printer
cladia aggregata
contingent transit insurance
cost plus pricing practice
coye
crown cantilever
Darrow, Clarence(Seward)
deep flaw
Degos'acanthoma
destination b/l
dinitramide
dioxabenzofos
Dolgorukovo
Dorothy L Sayers
dynamic instruction
enarthrum
Esino
ethnomimesis
eye witnesses
febrile urine
foreground invention
fossae helicis
general excise
graniteville
grey-coated
groundes
gyalpo
hat size
hexahydrohematoporphyrin
immediate processing
immunoelectrophoreses
implicit rule
improved strength
incentive operator
indented disc separator
isicle
Jīzah, Ahrāmāt al
kako
kernicterus
Korsak
Langevin ion
life condition
lightweight multiple launcher (lml)
maacoccus scolopiae
machine wall
medium-size network
mesh generator
mixed assemblage
moor-grass
multiple pupil
narrow knowledge sociology
New Caledonian
nitrobromoform
obscured
off-line copying device
one-days
overceiling
overlapped route
pea-soup
physical atomic weight unit
pigeon guillemot
plutarchy
pool depth
pulsation error
puparial
quantity received this period
radiometric age dating
rebelieving
residual penetrant
rigidulus
safe heat transfer
schema theory
sea blites
seco alkylation
segmental pad
sharin'
solid-state electrolyte gas sensor
swickle
synergistic gangrene
tent-meeting
the shit
thermal station
tide generating set
turow
vahajis
ventricular paroxysmal tachycardia
VTP
Wolf R.
Włocławek