时间:2019-02-13 作者:英语课 分类:英语新闻


英语课

   BEIJING, Sept. 6 (Xinhuanet) -- NASA will launch on Thursday twin lunar orbiters built to map the gravity of Earth's moon in unprecedented 1 detail, media reported Tuesday.


  The twin lunar probes, Graili-A and Graili-B, will blast off from Florida's Cape 2 Canaveral Air Force Station at 8:37 a.m. EDT and at 9:16 a.m. EDT respectively Thursday, according to NASA.
  The Grail twins will travel three to four months to get to the moon under a slower but more economical plan.
  The two spacecrafts will reach the moon around New Year's Day when they will begin to probe the moon's composition from the crust to the core, according to NASA.
  The data collected by the probes will be used to better understand the moon's evolution and formation, NASA scientists said.
  Researchers will also use the twin probes to pinpoint 3 the best landing sites for future explorations.
  The mission, from start to finish, costs 496 million U.S. dollars. The two Grail probes will crash into the moon after its mission.

adj.无前例的,新奇的
  • The air crash caused an unprecedented number of deaths.这次空难的死亡人数是空前的。
  • A flood of this sort is really unprecedented.这样大的洪水真是十年九不遇。
n.海角,岬;披肩,短披风
  • I long for a trip to the Cape of Good Hope.我渴望到好望角去旅行。
  • She was wearing a cape over her dress.她在外套上披着一件披肩。
vt.准确地确定;用针标出…的精确位置
  • It is difficult to pinpoint when water problems of the modern age began.很难准确地指出,现代用水的问题是什么时候出现的。
  • I could pinpoint his precise location on a map.我能在地图上指明他的准确位置。
标签: NASA gravity
学英语单词
a THO
air convection dryer
analexin
anaphoric element
angiogenic cell cluster
Areco, R.
astern stage
ASVS
automatic balance
axis out of line
be caughtor takered handed
besorts
bevis
black turnstones
bluebacks
Boethius
bond equivalent yield
browsing mode
busching
carpetmuncher
chaetoceros eibenii
channelopathy
Christabel
chromatoplasm
coast mountainss
coining credit
collision avoidance maneuver
corpusants
depth of soil
dhsis
dominance condition
dynamic feedback
Dzoraget
elemental sensitivity factor
end hooks
eurithermophilic
fibre frictoin
fine-grained sediment
Frauendienst
free-radical theory
Gaelicises
geology of the Mercury
gowings
GP (gas pressure)
headwark
hepatonephritis serota acuta
Heteroderidae
histidine operon
hydride transfer
hydroclone classification
incumbition
inspiringly
jasons
larghettoes
leaping atrophy
learning disorders
let something lie
ligator
microelectrophoretic cell
mionectic
Mossbauer gravity meter
negative going transition
nonlegume forage
north water
number of test-pieces
oviraptorosaurs
pair-bloc casting
particle physics
Phlebotomus macedonicum
polyclinical
porn stars
power cut-out switch
Précy-sous-Thil
pussy butterfly
reinforced refractory brick
resonance-absorption peak
Rifaldine
River Acheron
rosser b.
scarlet-pink
Sentani, Danau
single stage nitriding
straightway cock
subpellucid
summer-heat being likely to disturb heart
superinsulators
tarnish resistant flannel
tarnished plant bug
temple-complex
two-hole directional coupler
ujio
un-audit balance sheet
unfast color
unhandcuff
vac-sorb
variable length logical operand
vibrationless
wadding weft
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