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单词
gravitational lens
释义
WordReference Random House Unabridged Dictionary of American English © 2024
gravita
′
tional lens
′
,
[
Astron.
]
Astronomy
a heavy, dense body, as a galaxy, that lies along our line of sight to a more distant object, as a quasar, and whose gravitational field refracts the light of that object, splitting it into multiple images as seen from the earth.
1975–80
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更新时间:2025/11/10 18:40:27