河底淤高

In January 2000, John Dubinski set out to calculate the final fate of our galaxy, the Milky Way, and that of our nearest neighbor, Andromeda. The Andromeda galaxy is actually falling towards the Milky

发表于:2018-12-07 / 阅读(423) / 评论(0) 分类 超大质量黑洞

Mars Lander Will Peer Inside Planet Absolutely spectacular missionand its not a rover, its a lander. Its designed to land and deploy several instruments. 这是一个绝对壮观的使命......它不是漫游者,而是着陆器。旨在登陆和部署

发表于:2018-12-24 / 阅读(142) / 评论(0) 分类 2018年科学美国人5月

Greenspan Predicts US Job Growth Soon Barry Woods U.S. central bank chief Alan Greenspan told a congressional committee Thursday that the United States must resist protectionism . Mr. Greenspan told t

发表于:2019-01-07 / 阅读(152) / 评论(0) 分类 VOA2004(上)--各类新闻

Mars is a planet of outsized splendor. Despite being only half as big and a tenth as heavy as Earth, it bears the solar systems tallest mountain, longest canyon and largest crater. At 22 and 12 kilometers wide, however, its inner moon Phobos and oute

发表于:2019-01-20 / 阅读(154) / 评论(0) 分类 2016年Scientific American(八)月

The glowing region is the accretion disc, star debris falling inward, would turn round in the maelstrom heated by frictions to such high temperatures that it glows white hot. So at the center of our galaxy, we do have a black hole. We now know that t

发表于:2019-01-22 / 阅读(145) / 评论(0) 分类 自然百科2011年

火山爆发 The Eruption of Volcano abundant adj. 丰富的,富余的 accretion n. 增长 accumulation n. 积聚,堆积物 active volcano 活火山 Alaska Volcano Observatory 阿拉斯加州火山观

发表于:2019-02-02 / 阅读(210) / 评论(0) 分类 英文语法词汇
学英语单词
5'-bromodeoxyuridine
adventureth
advertizes
affirmativism
Alsical
barrette file
birliks
caliper logging
Callicarpa formosana
Carnot engine
celestial latitudes
characteristic-function
climatogram
coincidence signal
cold appearance
cold stowage
combined shielding
Cosala
costal trading
cpid
credit extensions to overseas non-residents
crude oil
cupressineous
cuticular bead
defense-suppression missile
digist
disabling injury severity rate (disr)
dressmakers
drinking water ozone disinfector
dynamic linking descriptor
equatorial dry zone
extraembryonic ectoderm
fast analysis
frost season
fused fibre bundles
get through sth
glass insurance
greysteels
handworm
hard stratum
hasidisms
hastately
heeling adjustor
ileana
immunoconglutin
inductive system
interscendental
Iron Station
jauch
juryman
kilo-hertz
manuhiri
markets
Menon, Vengalil Krishnan Krishna
metembonate
mosaic structure
mozette
naphthalin iodoform
Natchezes
nor-anhydroicaritin
Oertel
onholding
overseas debt
padrino
Paipaie
paper snowflake
parmyxoviridae
patton's spruce
personal probability
pier-to-pier containerization
pompion
ponc
precatorious
pretty baby
pyknosis
Samti
sanitray towel
severity rate
soap holder
spastic ectropion
specieist
ssads
statistics of fixed assets
submolecular plexus
subprocedure depth
Sumamed
sympathetic block
tally-clerk
termination of block
tester for bed coke height of cupola
the sentences
the unconscious
theory of flight
tretinoins
trousseau's syndrome(migratory thrombophlebitis)
two-dimensional maze search
unemasculated
vegetable pear
viscosity breaking
water pollution monitor
wiener dog
windshield pillar