音标:[ɪ'rɪdɪəm; aɪ-] ;
n. [化学] 铱(Ir)

The K-T boundary marks the end of the age of dinosaurs, and the beginning of the age of mammals. KT界限层标志着恐龙时代的终点和哺乳动物时代的开端。 But does the K-T boundary really signify the absolute end of all dinosaurs? 不过

发表于:2018-12-28 / 阅读(47) / 评论(0) 分类 侏罗纪搏击俱乐部

US Company Developing Space-Based Plane Tracking 美国公司开发太空基地飞机追踪技术 LEESBURG, VA One of the reasons Malaysia Airlines flight MH370 hasn't been found is because the plane couldn't be tracked continuously over the ocean. I

发表于:2019-01-14 / 阅读(44) / 评论(0) 分类 VOA标准英语2015年(八月)

A radioactive source which went missing four days ago has been found on Saturday evening. An Iridium 192 source, which was used to inspect a Sinopec industrial device in Nanjing by a testing company, had gone missing on Wednesday. Ten people in the s

发表于:2019-02-08 / 阅读(83) / 评论(0) 分类 CCTV9英语新闻2014年05月
学英语单词
acinar carcinoma
actuation logic
allicins
amerio method
anisometropic asthenopia
antimilitarisms
approaching side
aromatic spirits of ammonia
aryepiglottidean
astro-boffins
asweve
automated press line
Azerbaijaniness
be laden with
Beira Baixa, Prov.da
bobbin-boy
bridge board
bushing driver
civil-aviation
construction of water conservancy works
continuous heavy rain
curs
cyton
dape
doucement
driving in
ecclesiophile
elder (berry) oil
encephalocraniocutaneous lipomatosis
Epimedium pauciflorum
etamivan
fade-proof
flat oil stone
fuel-element failure
genus lardizabalas
guns of Navarone
guot
hematitepig iron
hericane
Hewitt's fine alloy
high-voltage switch
hydrophones
ifni
image-motion compensation
index of abnormality
ingorgeous
interstitial distance (mather 1936)
IP (intermediate pressure)
johillerite
Kaempferia pundurata
Koganei
leisz
lifo(last in-first out)
locomotive stock
Long Branch
meatily
mechanical labor
methine and polymethine colouring matters
microdiodes
nonteleological criteria
oceanic mining
on stage
pasig
perennial canal
permanent wiring
Phillipe
Pielach
pole jam
pornophobic
power transmission capacity of power line
preassignment
predictably
primitive(unit) cell
projectile trajectory
pseudo-Anosov map
pseudophite
pulse strecher
pyroelectric signal
rectangular aperture
retinosis
rhodiola
riverwoods
Rothenkirchen
run-time diagnostic message
s hydrograph
saracens
sealed pumpless vacuum system
singing bird
Smirnovo
ST_trials-and-court-cases_law-courts
tecoes
tendring
tensile stiffness
to chip
total perspective
totalitarians
transgranular corrosion
united states civil wars
ventricular dilatation
vertical jitter
voltage lead
wet room