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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-verine
aggregate point of presence with gigabit capacity
akosombo
alfadolone
alibi oneself
arc converter
arc spectrum
arterisclerosis obliterans
attenuation slope
automatic boiler control system
avante-gardes
blende roasting furnace
brandellet
carboline-carboxylic(acid)ester
carbon-graphite bearing
chemical exfoliative rhytidectomy
Chloroflexales
chunked
cinemaphotographers
clashy-clashy
continuous drought days
corn stalks
courtlace
cross-tabulatings
D. P. L.
data degradation
digital temperature controller
dog paddled
downdip block
dropping moor
dynamagnite
enter sb for sth
exhaust brake
exhaust branch pipe
fanweeds
final cut
Financial Performance
focusing spectrometer
forwandering
gastraea theory
generalized two-phase model
high courts
histocultures
hydraulic dump rake
hyposulphurous
in bankruptcy
ionophoreses
kaspis
kyber
La Jolla Indian Reservation
laboratory-prepared inoculum
lanosol
lease-back
leide
line of profile peaks
lomerizine
mafic minerals
magstripes
masticic
mental arithmetic
mercury (II) amidofluoride
metal(corrosion) inhibitor(s)
Michaelmas daisy
module summary report
near-shoemaker
net outflow of fund across the exchange
no you don't
octoberfest
pnenmohypoderma
preferred axis of magnetization
process ink
put sb through it
radiation trapping
rattles up
raunch out
rhinotermitid
Saxonists
secondary electron conduction camera tube
single-barrelled
small changes
smaller foraminifera
somnambulistic trance
split image
squabbling
standard fuel rod
storm surge forecasting
Stowe, Harriet Elizabeth Beecher
struck with admiration
stumble upon
subtraction circuit
sucking jaw
telemetry impact prediction system
Terene
three-headeds
ticket counter
to the highest pitch
transformation by reciprocal half plane
triangular plug
underplants
vaild period
W/WO