coalsack nebula中文是什么意思

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中文翻译
造句

煤袋星云

coalsack 装煤麻袋；【天文学】煤袋〔银河中靠近南十字座的黑洞〕。
nebula n. (pl. -lae nebulas) 1.【天文学 ...
southern coalsack (银河中的黑斑)南煤袋
nebula n. (pl. -lae nebulas) 1.【天文学】星云；云状,雾影；【医学】角膜翳。 2.(小便的)溷浊；喷雾剂。 a ring [spiral] nebula 环状星云。 a planetary nebula 行星状星云。 a stellar nebula 星云群。
ring nebula = annular nebula 环状星云
absorption nebula 吸收星云
acicular nebula 针状星云
alawanir nebula 奥瓦纳星云
anagalactic nebula 河外星云
andromeda nebula 仙女星云; 仙女座星系; 仙女座星云; 星云阵
annular nebula 环状星云
arachnid nebula 亚拉尼德星云
barred nebula 棒旋星云
blackish nebula 黑圆翳
boomerang nebula 回飞棒星云
bright nebula 亮星云
butterfly nebula 蝴蝶星云
california nebula 加利福尼亚星云
carina nebula 船底座星云; 卡利纳星云
cloudy nebula 云翳
corneal nebula 角膜薄翳
crab nebula 巨蟹星云; 蟹状星云
creamy nebula 凝脂翳
crescent nebula 蛾眉月星云
dark nebula 黑暗星云

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百科解释

The Coalsack Dark Nebula (or simply the Coalsack) is the most prominent dark nebula in the skies, easily visible to the naked eye as a dark patch silhouetted against the southern Milky Way. It was known pre-historically in the Southern Hemisphere and was observed by Vicente Yá?ez Pinzón in 1499.

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