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单词 coal-sack
释义 ˈcoal-sack
1. A sack to carry coal in.
1632Massinger City Madam iv. iii, A coal-sack for a winding-sheet.1638Ford Fancies i. ii, Let me be buried in a coal sack.1854Hull Improv. Act 52 Penalty for using undersized coal-sacks.
2. A name given to patches in the Milky Way distinguished by extraordinary blackness, owing to the absence of even dim stars; esp. to one near the Southern Cross, formerly called also the Black Magellanic Cloud.
1870Proctor Other Worlds than Ours xi. 264 In the southern Coal-sack there are minute telescopic stars.1879Newcomb & Holden Astron. 415 Vacant spaces in it [Milky Way] which the navigators call coal-sacks.
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更新时间:2024/12/22 9:23:48