黑洞
hēidòng
黑洞 — hēidòng
- black hole (astronomy)
黑洞是宇宙中密度极高、引力极强的天体。 hēidòng shì yǔzhòu zhōngmìdù jí gāo yǐnlì jí qiáng de tiāntǐ — A black hole is a celestial body in the universe with extremely high density and strong gravity.
hēidòng
黑洞是宇宙中密度极高、引力极强的天体。 hēidòng shì yǔzhòu zhōngmìdù jí gāo yǐnlì jí qiáng de tiāntǐ — A black hole is a celestial body in the universe with extremely high density and strong gravity.