音标:[əˈmælgəmz] ;
n. 汞合金( amalgam的复数形式 ); 混合物
n. an alloy of mercury with another metal (usually silver) used by dentists to fill cavities in teeth; except for iron and platinum all metals dissolve in mercury and chemists refer to the resulting mercury mixtures as amalgams
n. a combination or blend of diverse things

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(309) / 评论(0) 分类 60秒科学
学英语单词
after glow correction
age-specific fecundity
al-hijrah
allomimetic(allelomimetic) behavio(u)r
angle of polygon
Arteria epigastrica inferior
Aussie bond
auxiliary deck engines
axis of absorption
beam footprint
Beijing
beta-coefficient
biotite hornblendite
bristlelike monofilament
brushing fastness
c.c.a.
C8
cavalry-man
Chennault
coherent signal
comminuter
control of ground vibration from blasting
cryptographic machine
d-shell connector
dalisons
desert scrub
direct distrbution
dominance relation
double switch call
Dunk'uk'u
durability design
dynamic analog device
editorial control
Emodinmonomethylether
enriching needle
enrichment tails
external tapping
ferrous sulphate treatment
fire-resisting wood
firmamentary
frosty Friday
Grand Rhône
grass factor
ground clearance of ma-chine
grounded bridge
Guilford County
heptadecyl chloride
Horse of the Year Show
hysteresiscope
install on demand
international public telegram service
intertraffic
james hargreavess
katadyn
kukuruku disease
lactucol
lateral collateral ligament
Mansfield Point
Mequal
metadolerite
mother wafer
negotiation of contract terms
Neognathae
observation of slope stability
on the south
perrepae
point write mode
postgraduate degree
posttranscriptional modification
redraughted
ribosyls
santoro
scholarly person
semi-opacous
siliquose desquamation
silvery-bodied
siratro
skin-on-skin
so much the worse for
sparke
Spiraria
square-headed
Stronticalcite
stud stretcher
terrace deposits
TGX
thallium(i) sulfide
Thateng
time sharing system
transforaminal
trichospermum
trimmed in bunker
turn up (sound)
Turuntayevo
twist triangle point
unassented authorization
unitary code
urea citrate
Värmlandsbro
wood-carving
xanthosoma
Yanskiy Zaliv