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蟹状星云
释义
蟹状星云
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理学
蟹状星云
释
Crab Nebula
蟹状星云
金牛座的一团无定形的膨胀气体云。星表中的编号为M1和NGC1952。标准历元J2000为赤经05h34m31.94s,赤纬+22°00′52.2″。角径为7′×4′,视亮度相当于9等星。
Astronomy
Crab Nebula
蟹状星云
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solvable by radicals
solvable congruence
solvable equation
solvable extension
solvable flow
solvable group
solvable group; soluble group
solvable group variety
solvable ideal
solvable Lie algebra
solvable Lie group
solvable manifold
solvable model
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solvable problem
solvable radical
solvable ring
solvable set
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solvable subgroup
solvable subgroup series
solvable subgroup system
solvable superalgebra
solvable system
solvable theory
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