[化] 磷酸镱; 正磷酸镱

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(58) / 评论(0) 分类 医务英语

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

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(76) / 评论(0) 分类 Scientific American(四)月
学英语单词
AC flip-flop
achromatic colo(u)r
action for consortium
akebia quinata dc.
armband
Aronson's serum
aviation gasoline tax
backsliders
battle of Teutoburger Wald
BCG vaccine
bearcats
becalming
belizeans
branchial arch syndrome
Bupleurum dielsianum
cardicentesis
caropeptide
cast fossils
center through plate
cevitamic
circumcisee
clean bowls
coquille plano lens
Cosa Nostra look
crateva adansonii formosensis
Crista choanalis vomeris
crpss
cyllosis
design norm
diffused silicon diode
diffusometer
direct-effect model
dreambook
ductus blliferi
ear-piercings
eight-woman
ernst cassirers
error covariance
fatet
Felbatol
ferrotyped
flies into
flindosa
food crops
greame
Hidalgo del Parral
Hypex horn
initial subscription price
International Finance Corporation Agreement
it's a shame
jawwal
kealakekua bay
laevulosuria
large young strategy
linear hereditary system
lysa
make fish of one and flesh of the other
maritime climatology
maximum force exerted in full range
mechanical poisoning
Mega Cap
metal cushion
morphology of polymer
n-p-n junction
net succession
non-ferrous material
orpington chicken
osseointegrations
palptrochanter
phenylquinoline
photoactinic
phreatomagmatic eruption
phyllosticta zeae-maydis
pond up
Pyrethia
pythogenic fever
quirkiest
raguinite
raspings
recirculating zone
rewaxes
Roebling
Sanicula serrata
Satupa'itea Dist.
sigmoidoceles
size box
social telesis
source books
spot comparism exposure meter
Stephenson County
suturae visceroparietalis
sweet and sour
switch horns
tearier
ten-month
theory of technology
tidal river reach
triphenylmethyltin
ventrifossa fusca
waterborne clause
with a yawn