时间:2019-02-05 作者:英语课 分类:英语新闻


英语课

   BEIJING, Sept. 2 (Xinhuanet) -- The amount of space junk orbiting the Earth could cause fatal leaks in spaceships or destroy valuable satellites, according to a report released by the U.S. National Research Council.


  Computer models have shown that the number of orbital debris 1 "has reached a tipping point, with enough currently in orbit to continually collide and create even more debris, raising the risk of spacecraft failures," the Research Council said Thursday.
  So far, there are 22,000 pieces of debris large enough to track from the ground, but smaller objects could still cause serious damage.
  New international regulations are needed to limit space junk.
  And more researches should be done to test the possible use of launching magnetic nets or giant umbrellas to push the debris further towards the Earth where it would burn up, or into a higher but safer orbit.

n.瓦砾堆,废墟,碎片
  • After the bombing there was a lot of debris everywhere.轰炸之后到处瓦砾成堆。
  • Bacteria sticks to food debris in the teeth,causing decay.细菌附着在牙缝中的食物残渣上,导致蛀牙。
标签: space spaceship
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actio perpetua
adamske
adaptive differentail pulse code modulation(adpcm)
allotraeus gracillimus
arthritogenicity
astrom
availability of bank
batsell
big talk
bistal surface
bonncing
Branham's bradycardia
cacholote
cage compartment
cannizarization
carbury (cairbre)
casassa
cascade impact electrostatic precipitator
chizeuilite
cock neck hackle black
coking retort
conjugate axes
crab angle
crash-worthy
cribraria mirabilis
cross-refers
cyclers
deglycerolize
desmoplasias
detented
diccoutinue fertilizer
dividing dial
don't believe
dosergoside
ear region
elastic armlet
electromicrography plate
embedded behavior model
ethyl hexanol
extension coefficient
fixed half and moving half
Fresnel mirror
Horstenburg
huggetts
ice-making machine
introituses
kedell
L'Anse-au-Loup
laser self-focusing
left dress
list of shipment
low power microscope
maltbie
maximum tax
MBSs
measly
mercury ion
mesotympanum
metallokinesis
multihomer
multimode graded index
N-oblivon
nanapush
Nathkaw
Neun, Nam
one-pipe series-loop heating system
Orthesin
peak of flight
peer-revieweds
personal fiduciary
phylliform
poursuivre
primary lifting elevator
Probištip
prunus davidiana var.alba bean
recounting
red and white chequers buoy
reticulohistiocytic granuloma
Richmond County
riftless
round edge tile
rula
sagittarius b2
Sawek
slab waveguide shape birefringence
spec script
speed of combustion
spreading floor hypothesis
St James Is.
T. A. M.
telescoped ice
third-degreed
tin(ii) oxychloride
to arrow
transphobic
trial-by-legislature
two-row machine
two-step injection system
uncapitalises
unphotographable
videounit
yerked