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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A Supplement to Compendium of Materia Medica
actinide oxometallate
admissions.
analeptan
animose
armature slot
backtroller
bird in a gilded cage
blow out
caenorhabditis
callm abbreviated
candymaker
carbon sequestration
Chiriguana
circuit value
colection perennial herb
comprehensive strategy
D lines of sodium
ddes
deaerating feed water heater
Destruction, Mt.
digital audio console
diplonerva (tristoechia) bifasciata
distant repeater
do not have
doloriferous
dynamic tool display
educational attitude
Eliade, Mircea
emergency communication network
espiga
externa et interna pericarditis
facial quadrangle
Fiduciary Risk
filter coke
gallium(ii) bromide
get out of here
h.t.s
hhds., hhds
hyperuricemic nephropathy
indemand
ionization manometer
knob and trail
Kushiro
kuzmic
labored under
lime pan
malvon
manzullo
MDA (multi-dimensional access memory)
measurement base
Mereto
munidopsis ceratophthalma
nonpassengers
nutrifaction
Oberburg
ogrism
oil sight gage
oil-pumping
outdoor exposure test
panulirus japonicus
pellet corona
plumaciol
plumbous oxide
polar solvents
polyvinyl chloride sheet
poundings
present marriage
pressure molding
rating nut
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schizontocyte
school crossings
semisynthetic penicillin and ergot system fungus
single seaming
slut's wool
solar-heated
specific fuel consumption(sfc)
stripping andmining engineering profile
Swertia forrestii
tachometer
talking stage
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temperature compensating circuit
Tiglylpseudotropeine
Torre
tough rubber sheathed rubber insulated cable
ultraluxe
unhandy ship
unyieldingly
us uns
vowel sounds
walewska
wedge type launching cradle
weighted equivalent deviation
wheelhorse
woven wire mesh belt conveyer
wyca
Yprois