[化] 硫酸镱

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(74) / 评论(0) 分类 Scientific American(八)月

Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d

发表于:2019-01-19 / 阅读(97) / 评论(0) 分类 世界各地新闻集锦

We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S

发表于:2019-02-23 / 阅读(90) / 评论(0) 分类 英语时差8,16

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(163) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
Abd al-Aziz
Achkoute
active metabolite of drug
aeropolygon
agher
arteria ileocolicas
automatic variable
bachata
basic standard motion
bichu fibre
bombax ceibas
Capacity Liability
cetoenzyme
Chande Momentum Oscillator
Chilung
citrating
conclusion of pressure testing
conversion of wave
Coulomb friction
cut-off slope
declare the contract avoided
denigratings
departure
dissolved organic carbon (doc)
dog-trot
dysregulated
fast-flying
feedforward filter
flash band
FORAC
grooved rubber
handscroll
hash maps
have a sharp tongue
HEDSPA
hillandale
hop it!
hypertension of pregnancy
job opening
Kant, Immanuel
lashawn
leus
lichenian
load on substructure
manpower utilization
mental aberrations
methyltartronic acid
microwave resonance cavity
mill tackle
mira type variables
modified two stream instability
Napier Pen.
napoleans
Neuber's tubes
neurogliomas
neutrophilic granulocytopenia
niskanen
nonene
nonitalicized
normomagnesemia
nyggish
Ormideia
panier
patent information activities
persistent cruelty
physical object
positive reversing
power-drills
preprocessor
proportional dividers
proposition variable
red cell adhesion test
rehydration ratio
reversetranscriptase
Roosdaal
rotary index drum
runder
Russian doll
scene of crime
selenium intoxication
semilunaris gyrus
Serëdka
Sintuist
spectrological
sqms
stock system
sub-high pressure
syco
tacchinoes
tertiary industries
three-dimensional doublet
to return to one's muttons
Torremaggiore
Trindade, Pta.da
two-path feedback
under one's spell
vegetable cork
viperfish
visual scanning
water-gall
weber-fechner's law
wide-bore