音标:['ɪtrɪəm] ;
n. [化学] 钇(稀有金属元素,符号Y)

Ytterby 瑞典小镇伊特比 yttrium 钇 (1794) erbium 铒 (1842) terbium 铽 (1842) ytterium 镱 (1907) 1794年在瑞典小镇伊特比的黑石中发现了化学元素钇,决定用 Ytterby命名该元素:yttrium。1842 年在该镇的黑石中发

发表于:2019-02-18 / 阅读(38) / 评论(0) 分类 实用英语
学英语单词
a ping
accrued cost
actified solution
Alexanderson, Ernst F(rederik) W(erner)
animal antitoxin
BACIE
be out in one's reckoning
birnam
bottstick
boundary-values
brain-boosting
brake-valve
bromo-trichloromethane
came off it
CDRF
cefpirome
column gap
comandanti
commercial business tax
common mode failures
cooling water expansion tank
coraggio
cyclodiathermy
Darley
declaration of defaults
depressive syndrome
dielectric constant meter
dipodal acephalus
Diveria, Torrente
division Bryophyta
drum phase control loop
dunnage wood
eicosenoyl
elsinoe araliae yamamoto
enterobius vermiculariss
Eriscel
ether soluble substance
flain
flame normalizing
Ford-O-Matic automatic transmission
gasplasma
genus arctostaphyloss
geographical variant of association
header files
hoistaways
holecoupling
hypnopaedias
illiquid asset
Ilūkste
image data
instruction cycle
INTIP
lonke
lyssa bodies
Massachusetts Bay Company
mid election
mischief-makers
ndacan
Ne Temere
nyctinastism
oxygen activation theory
patent family service
pathological form
payment card
pharmaceutical affairs law and regulation
phenomenology of mind
phone-jack
Poa pubicalyx
polarized lead zirconium titanate
radiation retinopathy
rated turning speed of rotor
reinterpreted
relative dielectric constant
Sagyang-ni
saiga antelope
sammel blende(samthlende)
sausage perforating machine
self-contained air conditioner
self-slagging impurity
shallow radiused notch
shinily
shipper's copy
shrimp trawler
sonar receiver-scanner
spaced teeth
stacked interrupt
stopwatch
support agency
tameless
telencepholon
Terramitsin
three-day eventing
thriver
union tag
unyerded
Uroflo-monitor
volume density of charge
wechsel
weight feeding
windrode
Zakuley