| 单词 | near-earth |
| 释义 | > as lemmasnear-earth near-earth adj. Astronomy situated or occurring close to the earth, spec. designating an asteroid or comet in an orbit that nearly intersects that of the earth (and so may one day collide with the planet). ΚΠ 1958 Science 18 July 125 (caption) Secular changes in the orbits of near-earth satellites. 1979 Nature 5 Apr. 503/1 Data on the characteristics of the near-earth radiation environment. 1994 Science 17 Dec. 11/3 The astronomers detected the asteroid..as part of their Spacewatch programme, a systematic search for near-Earth objects. < as lemmas |
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