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词汇 quasar
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quasar n.

1964, from "quas(i-stell)ar radio source" (1963); see quasi- + stellar. So called because they resembled stars in photographic images; now thought to be massive, distant, extremely luminous active galactic nuclei.

updated on March 02, 2021

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更新时间:2025/5/2 13:13:06