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单词 near-earth
释义

Definition of near-earth in English:

near-earth

adjective
Astronomy
  • Situated or occurring close to the earth, specifically designating an asteroid or comet in an orbit that nearly intersects that of the earth (and so may one day collide with the planet).

Origin

1950s; earliest use found in Science.

 
 

Definition of near-earth in US English:

near-earth

adjective
Astronomy
  • Situated or occurring close to the earth, specifically designating an asteroid or comet in an orbit that nearly intersects that of the earth (and so may one day collide with the planet).

Origin

1950s; earliest use found in Science.

 
 
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更新时间:2024/12/24 3:06:26