电气推进器

comet urge kidney sham continental certainty propulsion delegate derivation fowl tile denote deprive consolidate shutter depict nurture notion hover royalty deficient misery deliberate discrete orient

发表于:2018-12-01 / 阅读(83) / 评论(0) 分类 用Mp3背六级单词

Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod

发表于:2018-12-07 / 阅读(47) / 评论(0) 分类 (科普英语)Earth and Sky

Visionary Ideas Could Transform Future NASA Missions NASA, the U.S. space agency, has awarded $3 million in grants for 30 proposals which explore new ideas for Americas next generation space program. The proposals reflect wide-ranging visions of new

发表于:2018-12-16 / 阅读(40) / 评论(0) 分类 VOA标准英语2011年(八月)

Scientists Testing Space Propulsion by Light 科学家测试太阳能动力 Can the sun provide power for a spaceship to travel to the edge of our solar system? The answer may come from a small satellite. A Delta V rocket carried the satellite into s

发表于:2019-01-12 / 阅读(53) / 评论(0) 分类 2015年VOA慢速英语(六)月

NASA Working Toward Mission to Mars The head of the National Aeronautics and Space Administration, or NASA, said that the space agency is on track to land people on Mars in the 2030s. Charles Bolden is the administrator for NASA. He said that five ye

发表于:2019-01-12 / 阅读(50) / 评论(0) 分类 2015年VOA慢速英语(五)月

BEIJING, Sept. 6 (Xinhuanet) -- Scientists from Tufts University of the U.S. have created the world's smallest electrical motor in a single molecule. The finding was published in the journal Nature Nanotechnology on Monday. In the research, scientist

发表于:2019-01-30 / 阅读(72) / 评论(0) 分类 英语新闻
学英语单词
a brick layer
a.e.t
age-dependent
air carbon arc cutting
amrullah
antepituitary
arcads
arsenikstein
B-doubles
basegroup
be over the hill
beacon duties
beat the wind
beta-decay
bildad
bitey
bone coal
bordonaro
Brachmans
brassolid
Cainites
cant of the mandible
Carbofil
chart of marine gravity anomaly
chemical gypsum
chest mounted duster
chromatid non-disjunction
civilian technology
Clausius-Virial theorem
co-twin control
cocco-
Comessatti test
Davis Seamounts
deaf-blindness
decimal equivalent
Dolichopodidae
dugar
dysarthria literalis
egghead-of-all-trades
equinoctial tide
Ethyldicumarin
expirees
fibrosa juncturae
full-dress uniform
galiella javanica
glassy shear modulus
GPS,gps,g.p.s.
Groot-Winterhoekberge
guanas
heading-and-stope system
hemipyxis formosana
hermitaries
high speed sewing machine
holomitrium ferriei card. et th'er
informationreadwire
intercompetition
Isachne
knight rider
LDE (linear differential equation)
liquid nitrogen preservation
magnetic tape diagnostics
mangolike
martin-marietta
Megaclite
milk stout
MONOCENTRIDIDAE
mucoraless
Nardostachys grandiflora DC.
natural silica
NERC
nominal zero
Onamue
Opotiki
paranitroanilinum
patrol torpedo (pt) boat
plant milk
programing module
proximal radioulnar articulation
pure scattering
reinvestment rate
repurchase price
Retradin
ring stack
rotating cross feed unit
roughing-up machine
second-order polynomial
slow viruss
snmp-based
stationary sieve
step-daughters
suppurative pylephlebitis
time-sharing system executive
transfer table
transmediastinal
trinuclear
unconformable interface
underflow characteristic
untippable
variable length word symbolic assembly system
water source well
wedged bottom
wire