/?n?r???θ ?ɑ?b.d??kt/(abbreviationNEO)anobjectinspace, forexampleanasteroid,comet, ormeteoroidthat sometimespassescloseto theearth:近地天体Thetaskoffindingandtrackinglargenear-earthobjectsmore than onekilometreacrosshas beenassignedto the Spaceguard Survey.发现和跟踪直径超过一千米的大型近地天体的任务已交给“空间卫士勘测计划”来做。SMART Vocabulary: related words and phrasesAstronomy
albedo
Andromeda
Aquarius
Aries
asteroid
full moon
galactic
galaxy
Gemini
geostationary orbit
orbit
orbital
penumbra
phase
Pisces
substellar
sunspot
supergiant
supermassive
supermoon
See more results ?(Definition ofnear-earth objectfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/near-earth-object##