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(428) / 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(149) / 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(160) / 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(159) / 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(152) / 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(218) / 评论(0) 分类 英文语法词汇
学英语单词
age cycle
androgone
apparent power on valve side
arbitrary act
art objects
assuetude
auther of invention
automatic drill
Aylesbury Vale
Baratvka
bee hive
bidirectional clip ping circuit
blood-testing
booster power lever link
buldozer
capuche
cerceris formosana
chinagreen
clapometer
combiner
creational
cross brightness
crystal surface
cull chick
demonetisations
disabled page fault
disequal
ditylum sol
draw ahead
dust basin
economic dislocation
enatiozoa
enea
eosinopenias
eugenia formosana hay
execution error detection
floine
fuse wire
gas-company
gath
gestodenes
highboard
highly fluid slag
hosticide
hourigan
incestualized
intervents
isometamidium chloride
iterative elimination of dominated strategies
jolson
laugh on the wrong side of the
lead in trolley
lens capsules
limeberry
make scruple
micro-coded controller
mineral crystal structure
mineralocorticosteroid
moc switch
mohammed reza pahlavis
naval port engineering
noise protection
non-reversible process
NSMVT
off day
orchilytic
Osphroneminae
paperclipped
passengers
peni
physostigmine
phytobia magna
polyaminononanoic acid
postpurchase dissonance
precapillary arteriole
previous frame
printer plottci
procaine block
q-multiplier
Remijia
respection
restaffed
samoosas
Say, Thomas
security settings
self-organizing computer
Siraiki
sirenis
soil-lime
spiral limbus
state-symbol product
superior figures
Taberdga
the death
three-d heat treatment
time lag over-overload relay
triamide
tundra vegetation
twinkie
unrhyme
vanadium(iv) selenide
warper