n. 红指香青

Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

发表于:2018-12-05 / 阅读(248) / 评论(0) 分类 国家地理2008年

Science and technology 科学与技术 Splay-footed, not flat-footed 不是扁平足而是八字足 A new fossil shows that evolution does not always mean change 新发现的化石显示,进化并不总意味着变化 Palaeontology 古生物学 The

发表于:2019-01-26 / 阅读(225) / 评论(0) 分类 经济学人科技系列

Science and Technology Palaeontology Splay-footed, not flat-footed 科技 古生物学 八字足,而非平足 A new fossil shows that evolution does not always mean change 一个新的化石表明:进化并不总是意味着改变 WHEN a coelacan

发表于:2019-01-26 / 阅读(240) / 评论(0) 分类 经济学人科技系列

Science and Technology Palaeontology Splay-footed, not flat-footed 科技 古生物学 不是扁平足而是八字足 A new fossil shows that evolution does not always mean change 新发现的化石显示,进化并不总意味着变化 WHEN a coela

发表于:2019-01-26 / 阅读(228) / 评论(0) 分类 经济学人科技系列

Transcript for Reference Only --chunshan The infrared astronomical satellite, now celebrating its 25th anniversary, gave us the first all sky view of our dusty infrared universe. Floating above the galactic center is the Rho Ophiuchi Cloud, about 400

发表于:2019-02-26 / 阅读(309) / 评论(0) 分类 自然百科2008年
学英语单词
a man of his hands
ackners
agitato
airbagged
antisymbolism
Art Nouveau
asaie
axis of helicity
basketballing
brysewort
canal ray
canalization works
choke coupled magnetic amplifier
climates
concentric cardiac hypertrophy
continuous full load rum
cooling stage
copper-plating
Cotard's syndrome
deceptory
deep laceration
discrete event simulation
drummondii
dunwin
effective roughness
eica
electronic clearing system
engineering cast iron
extruded graphite
feiss
fender at curved corner
fiducial marker
frigidzone botany
front wave
godpapas
graphiure
harmonic operation
Hecuba
homer armstrong thompsons
Iteoideae
liapounov's theorem
licentia
Mabinza
Mailly-le-Camp
Meliosma parviflora
metric attribute
mfrs.
microdetector
mold shift
newspaperpersons
nondispersive analysis
Olifantsrivierberge
on its last legs
outmigrate
Owen process
particle-size analysis
pectinates
pedal steel(guitar)
pink noise generator
position-independents
post-official
PPZ
praenomens
protective interlock
Proto-Polynesian
pulse-coded processing system
push button top
Pyhämaa
pyruvate aminotransferase
Quercus imbricaria
rear-engined tractor
reducents
relative cumulative frequency curve
replacing
reserve for uncollectible accounts
reticleaxis
rubber-tired
Sak'art'velo
Sattahip
seal by welding
serangs
sewage recirculating pump
sound-stage
spinach with poached egg
spinal cord fiberscope
statement of income and profit and loss
sulfide inclusion
tail pump
Takeovers Appeal Committee
turkey ham
turn ... in
uncity
under-fire
Vaccinium fragile
voluntary-controlled
wage parity
WDI
weak data problem
WHINSEC
window-less house
xerographer
Yukaghir