Home > Term: 幻影
幻影
外观 ；在天文学方面，返回的周期性彗星的观察期。
- Part of Speech: noun
- Industry/Domain: Astronomy
- Category: Planetary science
- Company: PSRD
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Creator
- Lianghong
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(V.I.P) 31203 points - 100% positive feedback
(Hangzhou, China)
