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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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retail price of agricultural products
retained fetal membranes
retainer
retaining
retaining concrete plug
retaining constraint
retaining structure
retaining wall
retaining wall with anchors
retain the job but suspend the salary
retake
Retaliation
retanning
retanning agent
retard
retardance
retardation
retardation and fouling
retardation coil
retardation effect
retardation of polymerization
retardation plate
retardation spectrum
retardation time
retardation [time] spectrum
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